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Finding the Fourth Proportional to 218,951.91, 302,127.98 and 123,452.91

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Solution

The fourth proportional to 218,951.91, 302,127.98 and 123,452.91 is: 170,350.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,951.91 : 302,127.98 = 123,452.91 : x
  2. Step 2: Convert to fraction form
    218,951.91/302,127.98 = 123,452.91/x
  3. Step 3: Cross multiply
    218,951.91x = 302,127.98 × 123,452.91
  4. Step 4: Simplify right side
    218,951.91x = 37,298,577,706.16
  5. Step 5: Solve for x
    x = 37,298,577,706.16/218,951.91
  6. Step 6: Final answer
    x = 170,350.55

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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.