Home / 331,605.24-497,038.50-131,872.20

Finding the Fourth Proportional to 331,605.24, 497,038.50 and 131,872.20

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Solution

The fourth proportional to 331,605.24, 497,038.50 and 131,872.20 is: 197,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,605.24 : 497,038.50 = 131,872.20 : x
  2. Step 2: Convert to fraction form
    331,605.24/497,038.50 = 131,872.20/x
  3. Step 3: Cross multiply
    331,605.24x = 497,038.50 × 131,872.20
  4. Step 4: Simplify right side
    331,605.24x = 65,545,560,479.70
  5. Step 5: Solve for x
    x = 65,545,560,479.70/331,605.24
  6. Step 6: Final answer
    x = 197,661.41

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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.