Home / 331,376.75-496,761.40-129,109.33

Finding the Fourth Proportional to 331,376.75, 496,761.40 and 129,109.33

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Solution

The fourth proportional to 331,376.75, 496,761.40 and 129,109.33 is: 193,545.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,376.75 : 496,761.40 = 129,109.33 : x
  2. Step 2: Convert to fraction form
    331,376.75/496,761.40 = 129,109.33/x
  3. Step 3: Cross multiply
    331,376.75x = 496,761.40 × 129,109.33
  4. Step 4: Simplify right side
    331,376.75x = 64,136,531,523.86
  5. Step 5: Solve for x
    x = 64,136,531,523.86/331,376.75
  6. Step 6: Final answer
    x = 193,545.66

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1.5x scale

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.