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Finding the Fourth Proportional to 218,934.92, 302,125.92 and 123,439.76

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Solution

The fourth proportional to 218,934.92, 302,125.92 and 123,439.76 is: 170,344.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,934.92 : 302,125.92 = 123,439.76 : x
  2. Step 2: Convert to fraction form
    218,934.92/302,125.92 = 123,439.76/x
  3. Step 3: Cross multiply
    218,934.92x = 302,125.92 × 123,439.76
  4. Step 4: Simplify right side
    218,934.92x = 37,294,351,054.58
  5. Step 5: Solve for x
    x = 37,294,351,054.58/218,934.92
  6. Step 6: Final answer
    x = 170,344.46

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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.