Home / 238,875.33-329,637.99-129,980.09

Finding the Fourth Proportional to 238,875.33, 329,637.99 and 129,980.09

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Solution

The fourth proportional to 238,875.33, 329,637.99 and 129,980.09 is: 179,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,875.33 : 329,637.99 = 129,980.09 : x
  2. Step 2: Convert to fraction form
    238,875.33/329,637.99 = 129,980.09/x
  3. Step 3: Cross multiply
    238,875.33x = 329,637.99 × 129,980.09
  4. Step 4: Simplify right side
    238,875.33x = 42,846,375,607.62
  5. Step 5: Solve for x
    x = 42,846,375,607.62/238,875.33
  6. Step 6: Final answer
    x = 179,367.10

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1.5x scale

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.