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Finding the Fourth Proportional to 237,422.72, 327,642.66 and 129,991.88

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Solution

The fourth proportional to 237,422.72, 327,642.66 and 129,991.88 is: 179,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,422.72 : 327,642.66 = 129,991.88 : x
  2. Step 2: Convert to fraction form
    237,422.72/327,642.66 = 129,991.88/x
  3. Step 3: Cross multiply
    237,422.72x = 327,642.66 × 129,991.88
  4. Step 4: Simplify right side
    237,422.72x = 42,590,885,341.60
  5. Step 5: Solve for x
    x = 42,590,885,341.60/237,422.72
  6. Step 6: Final answer
    x = 179,388.41

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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.