Home / 284,158.57-392,138.02-156,833.25

Finding the Fourth Proportional to 284,158.57, 392,138.02 and 156,833.25

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Solution

The fourth proportional to 284,158.57, 392,138.02 and 156,833.25 is: 216,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,158.57 : 392,138.02 = 156,833.25 : x
  2. Step 2: Convert to fraction form
    284,158.57/392,138.02 = 156,833.25/x
  3. Step 3: Cross multiply
    284,158.57x = 392,138.02 × 156,833.25
  4. Step 4: Simplify right side
    284,158.57x = 61,500,280,125.17
  5. Step 5: Solve for x
    x = 61,500,280,125.17/284,158.57
  6. Step 6: Final answer
    x = 216,429.44

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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.