Home / 238,918.50-329,715.29-136,963.28

Finding the Fourth Proportional to 238,918.50, 329,715.29 and 136,963.28

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Solution

The fourth proportional to 238,918.50, 329,715.29 and 136,963.28 is: 189,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,918.50 : 329,715.29 = 136,963.28 : x
  2. Step 2: Convert to fraction form
    238,918.50/329,715.29 = 136,963.28/x
  3. Step 3: Cross multiply
    238,918.50x = 329,715.29 × 136,963.28
  4. Step 4: Simplify right side
    238,918.50x = 45,158,888,751.25
  5. Step 5: Solve for x
    x = 45,158,888,751.25/238,918.50
  6. Step 6: Final answer
    x = 189,013.78

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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.