Home / 238,838.80-329,644.68-136,932.72

Finding the Fourth Proportional to 238,838.80, 329,644.68 and 136,932.72

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Solution

The fourth proportional to 238,838.80, 329,644.68 and 136,932.72 is: 188,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,838.80 : 329,644.68 = 136,932.72 : x
  2. Step 2: Convert to fraction form
    238,838.80/329,644.68 = 136,932.72/x
  3. Step 3: Cross multiply
    238,838.80x = 329,644.68 × 136,932.72
  4. Step 4: Simplify right side
    238,838.80x = 45,139,142,665.93
  5. Step 5: Solve for x
    x = 45,139,142,665.93/238,838.80
  6. Step 6: Final answer
    x = 188,994.18

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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.