Home / 285,864.40-394,517.10-158,581

Finding the Fourth Proportional to 285,864.40, 394,517.10 and 158,581

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Solution

The fourth proportional to 285,864.40, 394,517.10 and 158,581 is: 218,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,864.40 : 394,517.10 = 158,581 : x
  2. Step 2: Convert to fraction form
    285,864.40/394,517.10 = 158,581/x
  3. Step 3: Cross multiply
    285,864.40x = 394,517.10 × 158,581
  4. Step 4: Simplify right side
    285,864.40x = 62,562,916,235.10
  5. Step 5: Solve for x
    x = 62,562,916,235.10/285,864.40
  6. Step 6: Final answer
    x = 218,855.22

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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.