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Finding the Fourth Proportional to 230,990.39, 318,766.71 and 125,006.39

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Solution

The fourth proportional to 230,990.39, 318,766.71 and 125,006.39 is: 172,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,990.39 : 318,766.71 = 125,006.39 : x
  2. Step 2: Convert to fraction form
    230,990.39/318,766.71 = 125,006.39/x
  3. Step 3: Cross multiply
    230,990.39x = 318,766.71 × 125,006.39
  4. Step 4: Simplify right side
    230,990.39x = 39,847,875,669.28
  5. Step 5: Solve for x
    x = 39,847,875,669.28/230,990.39
  6. Step 6: Final answer
    x = 172,508.80

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1.5x scale

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.