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Finding the Fourth Proportional to 477,202.05, 715,808.03 and 140,248.71

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Solution

The fourth proportional to 477,202.05, 715,808.03 and 140,248.71 is: 210,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,202.05 : 715,808.03 = 140,248.71 : x
  2. Step 2: Convert to fraction form
    477,202.05/715,808.03 = 140,248.71/x
  3. Step 3: Cross multiply
    477,202.05x = 715,808.03 × 140,248.71
  4. Step 4: Simplify right side
    477,202.05x = 100,391,152,113.90
  5. Step 5: Solve for x
    x = 100,391,152,113.90/477,202.05
  6. Step 6: Final answer
    x = 210,374.52

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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.