Home / 331,761.60-497,584.80-121,291.20

Finding the Fourth Proportional to 331,761.60, 497,584.80 and 121,291.20

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Solution

The fourth proportional to 331,761.60, 497,584.80 and 121,291.20 is: 181,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,761.60 : 497,584.80 = 121,291.20 : x
  2. Step 2: Convert to fraction form
    331,761.60/497,584.80 = 121,291.20/x
  3. Step 3: Cross multiply
    331,761.60x = 497,584.80 × 121,291.20
  4. Step 4: Simplify right side
    331,761.60x = 60,352,657,493.76
  5. Step 5: Solve for x
    x = 60,352,657,493.76/331,761.60
  6. Step 6: Final answer
    x = 181,915.74

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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.