Home / 284,587.12-392,730.36-157,262.71

Finding the Fourth Proportional to 284,587.12, 392,730.36 and 157,262.71

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Solution

The fourth proportional to 284,587.12, 392,730.36 and 157,262.71 is: 217,022.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,587.12 : 392,730.36 = 157,262.71 : x
  2. Step 2: Convert to fraction form
    284,587.12/392,730.36 = 157,262.71/x
  3. Step 3: Cross multiply
    284,587.12x = 392,730.36 × 157,262.71
  4. Step 4: Simplify right side
    284,587.12x = 61,761,840,712.88
  5. Step 5: Solve for x
    x = 61,761,840,712.88/284,587.12
  6. Step 6: Final answer
    x = 217,022.61

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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.