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Finding the Fourth Proportional to 238,712.88, 329,465.88 and 136,743.60

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Solution

The fourth proportional to 238,712.88, 329,465.88 and 136,743.60 is: 188,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,712.88 : 329,465.88 = 136,743.60 : x
  2. Step 2: Convert to fraction form
    238,712.88/329,465.88 = 136,743.60/x
  3. Step 3: Cross multiply
    238,712.88x = 329,465.88 × 136,743.60
  4. Step 4: Simplify right side
    238,712.88x = 45,052,350,508.37
  5. Step 5: Solve for x
    x = 45,052,350,508.37/238,712.88
  6. Step 6: Final answer
    x = 188,730.29

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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.