Home / 288,363.54-432,273.15-138,688.50

Finding the Fourth Proportional to 288,363.54, 432,273.15 and 138,688.50

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Solution

The fourth proportional to 288,363.54, 432,273.15 and 138,688.50 is: 207,901.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,363.54 : 432,273.15 = 138,688.50 : x
  2. Step 2: Convert to fraction form
    288,363.54/432,273.15 = 138,688.50/x
  3. Step 3: Cross multiply
    288,363.54x = 432,273.15 × 138,688.50
  4. Step 4: Simplify right side
    288,363.54x = 59,951,314,763.78
  5. Step 5: Solve for x
    x = 59,951,314,763.78/288,363.54
  6. Step 6: Final answer
    x = 207,901.85

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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.