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Finding the Fourth Proportional to 331,328.88, 497,001.42 and 120,967.02

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Solution

The fourth proportional to 331,328.88, 497,001.42 and 120,967.02 is: 181,453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,328.88 : 497,001.42 = 120,967.02 : x
  2. Step 2: Convert to fraction form
    331,328.88/497,001.42 = 120,967.02/x
  3. Step 3: Cross multiply
    331,328.88x = 497,001.42 × 120,967.02
  4. Step 4: Simplify right side
    331,328.88x = 60,120,780,713.17
  5. Step 5: Solve for x
    x = 60,120,780,713.17/331,328.88
  6. Step 6: Final answer
    x = 181,453.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.