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Finding the Fourth Proportional to 534,427.20, 801,640.80 and 160,401.60

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Solution

The fourth proportional to 534,427.20, 801,640.80 and 160,401.60 is: 240,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,427.20 : 801,640.80 = 160,401.60 : x
  2. Step 2: Convert to fraction form
    534,427.20/801,640.80 = 160,401.60/x
  3. Step 3: Cross multiply
    534,427.20x = 801,640.80 × 160,401.60
  4. Step 4: Simplify right side
    534,427.20x = 128,584,466,945.28
  5. Step 5: Solve for x
    x = 128,584,466,945.28/534,427.20
  6. Step 6: Final answer
    x = 240,602.40

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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.