Home / 238,712.40-329,429.43-129,824.10

Finding the Fourth Proportional to 238,712.40, 329,429.43 and 129,824.10

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Solution

The fourth proportional to 238,712.40, 329,429.43 and 129,824.10 is: 179,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,712.40 : 329,429.43 = 129,824.10 : x
  2. Step 2: Convert to fraction form
    238,712.40/329,429.43 = 129,824.10/x
  3. Step 3: Cross multiply
    238,712.40x = 329,429.43 × 129,824.10
  4. Step 4: Simplify right side
    238,712.40x = 42,767,879,263.26
  5. Step 5: Solve for x
    x = 42,767,879,263.26/238,712.40
  6. Step 6: Final answer
    x = 179,160.69

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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.