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Finding the Fourth Proportional to 133,270.79, 199,876.71 and 38,480.40

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Solution

The fourth proportional to 133,270.79, 199,876.71 and 38,480.40 is: 57,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,270.79 : 199,876.71 = 38,480.40 : x
  2. Step 2: Convert to fraction form
    133,270.79/199,876.71 = 38,480.40/x
  3. Step 3: Cross multiply
    133,270.79x = 199,876.71 × 38,480.40
  4. Step 4: Simplify right side
    133,270.79x = 7,691,335,751.48
  5. Step 5: Solve for x
    x = 7,691,335,751.48/133,270.79
  6. Step 6: Final answer
    x = 57,712.09

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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.