Home / 331,578.60-497,310.30-121,108.20

Finding the Fourth Proportional to 331,578.60, 497,310.30 and 121,108.20

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Solution

The fourth proportional to 331,578.60, 497,310.30 and 121,108.20 is: 181,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,578.60 : 497,310.30 = 121,108.20 : x
  2. Step 2: Convert to fraction form
    331,578.60/497,310.30 = 121,108.20/x
  3. Step 3: Cross multiply
    331,578.60x = 497,310.30 × 121,108.20
  4. Step 4: Simplify right side
    331,578.60x = 60,228,355,274.46
  5. Step 5: Solve for x
    x = 60,228,355,274.46/331,578.60
  6. Step 6: Final answer
    x = 181,641.26

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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.