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Finding the Fourth Proportional to 238,608.63, 329,280.66 and 136,635.71

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Solution

The fourth proportional to 238,608.63, 329,280.66 and 136,635.71 is: 188,557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,608.63 : 329,280.66 = 136,635.71 : x
  2. Step 2: Convert to fraction form
    238,608.63/329,280.66 = 136,635.71/x
  3. Step 3: Cross multiply
    238,608.63x = 329,280.66 × 136,635.71
  4. Step 4: Simplify right side
    238,608.63x = 44,991,495,121.97
  5. Step 5: Solve for x
    x = 44,991,495,121.97/238,608.63
  6. Step 6: Final answer
    x = 188,557.70

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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.