Home / 284,155.49-392,132.61-156,831.05

Finding the Fourth Proportional to 284,155.49, 392,132.61 and 156,831.05

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Solution

The fourth proportional to 284,155.49, 392,132.61 and 156,831.05 is: 216,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,155.49 : 392,132.61 = 156,831.05 : x
  2. Step 2: Convert to fraction form
    284,155.49/392,132.61 = 156,831.05/x
  3. Step 3: Cross multiply
    284,155.49x = 392,132.61 × 156,831.05
  4. Step 4: Simplify right side
    284,155.49x = 61,498,569,945.87
  5. Step 5: Solve for x
    x = 61,498,569,945.87/284,155.49
  6. Step 6: Final answer
    x = 216,425.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.