Home / 331,451.10-497,176.65-121,239.90

Finding the Fourth Proportional to 331,451.10, 497,176.65 and 121,239.90

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Solution

The fourth proportional to 331,451.10, 497,176.65 and 121,239.90 is: 181,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,451.10 : 497,176.65 = 121,239.90 : x
  2. Step 2: Convert to fraction form
    331,451.10/497,176.65 = 121,239.90/x
  3. Step 3: Cross multiply
    331,451.10x = 497,176.65 × 121,239.90
  4. Step 4: Simplify right side
    331,451.10x = 60,277,647,328.34
  5. Step 5: Solve for x
    x = 60,277,647,328.34/331,451.10
  6. Step 6: Final answer
    x = 181,859.85

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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.