Home / 284,178.42-392,162.85-156,851.28

Finding the Fourth Proportional to 284,178.42, 392,162.85 and 156,851.28

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Solution

The fourth proportional to 284,178.42, 392,162.85 and 156,851.28 is: 216,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,178.42 : 392,162.85 = 156,851.28 : x
  2. Step 2: Convert to fraction form
    284,178.42/392,162.85 = 156,851.28/x
  3. Step 3: Cross multiply
    284,178.42x = 392,162.85 × 156,851.28
  4. Step 4: Simplify right side
    284,178.42x = 61,511,244,990.95
  5. Step 5: Solve for x
    x = 61,511,244,990.95/284,178.42
  6. Step 6: Final answer
    x = 216,452.91

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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.