Home / 285,966.18-394,633.49-158,641.88

Finding the Fourth Proportional to 285,966.18, 394,633.49 and 158,641.88

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Solution

The fourth proportional to 285,966.18, 394,633.49 and 158,641.88 is: 218,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,966.18 : 394,633.49 = 158,641.88 : x
  2. Step 2: Convert to fraction form
    285,966.18/394,633.49 = 158,641.88/x
  3. Step 3: Cross multiply
    285,966.18x = 394,633.49 × 158,641.88
  4. Step 4: Simplify right side
    285,966.18x = 62,605,395,998.18
  5. Step 5: Solve for x
    x = 62,605,395,998.18/285,966.18
  6. Step 6: Final answer
    x = 218,925.87

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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.