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Finding the Fourth Proportional to 206,737.52, 285,328.98 and 126,211.91

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Solution

The fourth proportional to 206,737.52, 285,328.98 and 126,211.91 is: 174,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,737.52 : 285,328.98 = 126,211.91 : x
  2. Step 2: Convert to fraction form
    206,737.52/285,328.98 = 126,211.91/x
  3. Step 3: Cross multiply
    206,737.52x = 285,328.98 × 126,211.91
  4. Step 4: Simplify right side
    206,737.52x = 36,011,914,117.51
  5. Step 5: Solve for x
    x = 36,011,914,117.51/206,737.52
  6. Step 6: Final answer
    x = 174,191.48

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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.