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Finding the Fourth Proportional to 323,002.80, 445,758.48 and 187,042.68

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Solution

The fourth proportional to 323,002.80, 445,758.48 and 187,042.68 is: 258,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,002.80 : 445,758.48 = 187,042.68 : x
  2. Step 2: Convert to fraction form
    323,002.80/445,758.48 = 187,042.68/x
  3. Step 3: Cross multiply
    323,002.80x = 445,758.48 × 187,042.68
  4. Step 4: Simplify right side
    323,002.80x = 83,375,860,731.93
  5. Step 5: Solve for x
    x = 83,375,860,731.93/323,002.80
  6. Step 6: Final answer
    x = 258,127.36

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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.