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Finding the Fourth Proportional to 239,418.88, 330,400.29 and 131,992.72

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Solution

The fourth proportional to 239,418.88, 330,400.29 and 131,992.72 is: 182,151.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,418.88 : 330,400.29 = 131,992.72 : x
  2. Step 2: Convert to fraction form
    239,418.88/330,400.29 = 131,992.72/x
  3. Step 3: Cross multiply
    239,418.88x = 330,400.29 × 131,992.72
  4. Step 4: Simplify right side
    239,418.88x = 43,610,432,965.89
  5. Step 5: Solve for x
    x = 43,610,432,965.89/239,418.88
  6. Step 6: Final answer
    x = 182,151.19

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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.