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Finding the Fourth Proportional to 360,020.40, 539,447.40 and 307,532.40

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Solution

The fourth proportional to 360,020.40, 539,447.40 and 307,532.40 is: 460,800.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,020.40 : 539,447.40 = 307,532.40 : x
  2. Step 2: Convert to fraction form
    360,020.40/539,447.40 = 307,532.40/x
  3. Step 3: Cross multiply
    360,020.40x = 539,447.40 × 307,532.40
  4. Step 4: Simplify right side
    360,020.40x = 165,897,553,595.76
  5. Step 5: Solve for x
    x = 165,897,553,595.76/360,020.40
  6. Step 6: Final answer
    x = 460,800.43

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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.