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Finding the Fourth Proportional to 543,004.20, 814,506.30 and 227,428.20

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Solution

The fourth proportional to 543,004.20, 814,506.30 and 227,428.20 is: 341,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,004.20 : 814,506.30 = 227,428.20 : x
  2. Step 2: Convert to fraction form
    543,004.20/814,506.30 = 227,428.20/x
  3. Step 3: Cross multiply
    543,004.20x = 814,506.30 × 227,428.20
  4. Step 4: Simplify right side
    543,004.20x = 185,241,701,697.66
  5. Step 5: Solve for x
    x = 185,241,701,697.66/543,004.20
  6. Step 6: Final answer
    x = 341,142.30

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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.