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Finding the Fourth Proportional to 207,026.72, 285,493.92 and 131,444

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Solution

The fourth proportional to 207,026.72, 285,493.92 and 131,444 is: 181,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,026.72 : 285,493.92 = 131,444 : x
  2. Step 2: Convert to fraction form
    207,026.72/285,493.92 = 131,444/x
  3. Step 3: Cross multiply
    207,026.72x = 285,493.92 × 131,444
  4. Step 4: Simplify right side
    207,026.72x = 37,526,462,820.48
  5. Step 5: Solve for x
    x = 37,526,462,820.48/207,026.72
  6. Step 6: Final answer
    x = 181,263.86

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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.