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Finding the Fourth Proportional to 555,211.40, 832,817.10 and 239,448.20

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Solution

The fourth proportional to 555,211.40, 832,817.10 and 239,448.20 is: 359,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,211.40 : 832,817.10 = 239,448.20 : x
  2. Step 2: Convert to fraction form
    555,211.40/832,817.10 = 239,448.20/x
  3. Step 3: Cross multiply
    555,211.40x = 832,817.10 × 239,448.20
  4. Step 4: Simplify right side
    555,211.40x = 199,416,555,524.22
  5. Step 5: Solve for x
    x = 199,416,555,524.22/555,211.40
  6. Step 6: Final answer
    x = 359,172.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.