Home / 238,561.07-329,215.01-131,142.11

Finding the Fourth Proportional to 238,561.07, 329,215.01 and 131,142.11

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Solution

The fourth proportional to 238,561.07, 329,215.01 and 131,142.11 is: 180,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,561.07 : 329,215.01 = 131,142.11 : x
  2. Step 2: Convert to fraction form
    238,561.07/329,215.01 = 131,142.11/x
  3. Step 3: Cross multiply
    238,561.07x = 329,215.01 × 131,142.11
  4. Step 4: Simplify right side
    238,561.07x = 43,173,948,753.29
  5. Step 5: Solve for x
    x = 43,173,948,753.29/238,561.07
  6. Step 6: Final answer
    x = 180,976.51

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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.