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Finding the Fourth Proportional to 239,057.75, 329,899.71 and 133,073.75

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Solution

The fourth proportional to 239,057.75, 329,899.71 and 133,073.75 is: 183,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,057.75 : 329,899.71 = 133,073.75 : x
  2. Step 2: Convert to fraction form
    239,057.75/329,899.71 = 133,073.75/x
  3. Step 3: Cross multiply
    239,057.75x = 329,899.71 × 133,073.75
  4. Step 4: Simplify right side
    239,057.75x = 43,900,991,533.61
  5. Step 5: Solve for x
    x = 43,900,991,533.61/239,057.75
  6. Step 6: Final answer
    x = 183,641.78

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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.