Home / 284,089.32-392,031.72-156,763.20

Finding the Fourth Proportional to 284,089.32, 392,031.72 and 156,763.20

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Solution

The fourth proportional to 284,089.32, 392,031.72 and 156,763.20 is: 216,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,089.32 : 392,031.72 = 156,763.20 : x
  2. Step 2: Convert to fraction form
    284,089.32/392,031.72 = 156,763.20/x
  3. Step 3: Cross multiply
    284,089.32x = 392,031.72 × 156,763.20
  4. Step 4: Simplify right side
    284,089.32x = 61,456,146,928.70
  5. Step 5: Solve for x
    x = 61,456,146,928.70/284,089.32
  6. Step 6: Final answer
    x = 216,326.85

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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.