Home / 331,987.56-497,981.04-121,641.88

Finding the Fourth Proportional to 331,987.56, 497,981.04 and 121,641.88

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Solution

The fourth proportional to 331,987.56, 497,981.04 and 121,641.88 is: 182,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,987.56 : 497,981.04 = 121,641.88 : x
  2. Step 2: Convert to fraction form
    331,987.56/497,981.04 = 121,641.88/x
  3. Step 3: Cross multiply
    331,987.56x = 497,981.04 × 121,641.88
  4. Step 4: Simplify right side
    331,987.56x = 60,575,349,909.96
  5. Step 5: Solve for x
    x = 60,575,349,909.96/331,987.56
  6. Step 6: Final answer
    x = 182,462.71

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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.