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Finding the Fourth Proportional to 475,017.36, 712,572.88 and 138,060.96

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Solution

The fourth proportional to 475,017.36, 712,572.88 and 138,060.96 is: 207,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,017.36 : 712,572.88 = 138,060.96 : x
  2. Step 2: Convert to fraction form
    475,017.36/712,572.88 = 138,060.96/x
  3. Step 3: Cross multiply
    475,017.36x = 712,572.88 × 138,060.96
  4. Step 4: Simplify right side
    475,017.36x = 98,378,495,882.76
  5. Step 5: Solve for x
    x = 98,378,495,882.76/475,017.36
  6. Step 6: Final answer
    x = 207,105.05

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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.