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Finding the Fourth Proportional to 288,601.41, 432,902.13 and 78,233.88

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Solution

The fourth proportional to 288,601.41, 432,902.13 and 78,233.88 is: 117,350.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,601.41 : 432,902.13 = 78,233.88 : x
  2. Step 2: Convert to fraction form
    288,601.41/432,902.13 = 78,233.88/x
  3. Step 3: Cross multiply
    288,601.41x = 432,902.13 × 78,233.88
  4. Step 4: Simplify right side
    288,601.41x = 33,867,613,290.16
  5. Step 5: Solve for x
    x = 33,867,613,290.16/288,601.41
  6. Step 6: Final answer
    x = 117,350.82

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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.