Home / 331,605.74-497,039.25-131,872.70

Finding the Fourth Proportional to 331,605.74, 497,039.25 and 131,872.70

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Solution

The fourth proportional to 331,605.74, 497,039.25 and 131,872.70 is: 197,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,605.74 : 497,039.25 = 131,872.70 : x
  2. Step 2: Convert to fraction form
    331,605.74/497,039.25 = 131,872.70/x
  3. Step 3: Cross multiply
    331,605.74x = 497,039.25 × 131,872.70
  4. Step 4: Simplify right side
    331,605.74x = 65,545,907,903.48
  5. Step 5: Solve for x
    x = 65,545,907,903.48/331,605.74
  6. Step 6: Final answer
    x = 197,662.16

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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.