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Finding the Fourth Proportional to 223,689.50, 335,534.25 and 81,545.43

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Solution

The fourth proportional to 223,689.50, 335,534.25 and 81,545.43 is: 122,318.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,689.50 : 335,534.25 = 81,545.43 : x
  2. Step 2: Convert to fraction form
    223,689.50/335,534.25 = 81,545.43/x
  3. Step 3: Cross multiply
    223,689.50x = 335,534.25 × 81,545.43
  4. Step 4: Simplify right side
    223,689.50x = 27,361,285,801.33
  5. Step 5: Solve for x
    x = 27,361,285,801.33/223,689.50
  6. Step 6: Final answer
    x = 122,318.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.