Home / 280,306.17-386,763.39-178,294.50

Finding the Fourth Proportional to 280,306.17, 386,763.39 and 178,294.50

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Solution

The fourth proportional to 280,306.17, 386,763.39 and 178,294.50 is: 246,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,306.17 : 386,763.39 = 178,294.50 : x
  2. Step 2: Convert to fraction form
    280,306.17/386,763.39 = 178,294.50/x
  3. Step 3: Cross multiply
    280,306.17x = 386,763.39 × 178,294.50
  4. Step 4: Simplify right side
    280,306.17x = 68,957,785,238.36
  5. Step 5: Solve for x
    x = 68,957,785,238.36/280,306.17
  6. Step 6: Final answer
    x = 246,008.80

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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.