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Finding the Fourth Proportional to 536,420.20, 804,630.30 and 162,443.20

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Solution

The fourth proportional to 536,420.20, 804,630.30 and 162,443.20 is: 243,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,420.20 : 804,630.30 = 162,443.20 : x
  2. Step 2: Convert to fraction form
    536,420.20/804,630.30 = 162,443.20/x
  3. Step 3: Cross multiply
    536,420.20x = 804,630.30 × 162,443.20
  4. Step 4: Simplify right side
    536,420.20x = 130,706,720,748.96
  5. Step 5: Solve for x
    x = 130,706,720,748.96/536,420.20
  6. Step 6: Final answer
    x = 243,664.80

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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.