Home / 331,543.20-497,379.60-142,003.20

Finding the Fourth Proportional to 331,543.20, 497,379.60 and 142,003.20

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Solution

The fourth proportional to 331,543.20, 497,379.60 and 142,003.20 is: 213,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,543.20 : 497,379.60 = 142,003.20 : x
  2. Step 2: Convert to fraction form
    331,543.20/497,379.60 = 142,003.20/x
  3. Step 3: Cross multiply
    331,543.20x = 497,379.60 × 142,003.20
  4. Step 4: Simplify right side
    331,543.20x = 70,629,494,814.72
  5. Step 5: Solve for x
    x = 70,629,494,814.72/331,543.20
  6. Step 6: Final answer
    x = 213,032.55

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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.