Home / 284,316.30-392,348.94-156,989.16

Finding the Fourth Proportional to 284,316.30, 392,348.94 and 156,989.16

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Solution

The fourth proportional to 284,316.30, 392,348.94 and 156,989.16 is: 216,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,316.30 : 392,348.94 = 156,989.16 : x
  2. Step 2: Convert to fraction form
    284,316.30/392,348.94 = 156,989.16/x
  3. Step 3: Cross multiply
    284,316.30x = 392,348.94 × 156,989.16
  4. Step 4: Simplify right side
    284,316.30x = 61,594,530,517.49
  5. Step 5: Solve for x
    x = 61,594,530,517.49/284,316.30
  6. Step 6: Final answer
    x = 216,640.87

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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.