Home / 247,715.20-371,529.60-89,862.40

Finding the Fourth Proportional to 247,715.20, 371,529.60 and 89,862.40

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Solution

The fourth proportional to 247,715.20, 371,529.60 and 89,862.40 is: 134,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,715.20 : 371,529.60 = 89,862.40 : x
  2. Step 2: Convert to fraction form
    247,715.20/371,529.60 = 89,862.40/x
  3. Step 3: Cross multiply
    247,715.20x = 371,529.60 × 89,862.40
  4. Step 4: Simplify right side
    247,715.20x = 33,386,541,527.04
  5. Step 5: Solve for x
    x = 33,386,541,527.04/247,715.20
  6. Step 6: Final answer
    x = 134,777.93

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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.