Home / 331,602.24-497,034-131,869.20

Finding the Fourth Proportional to 331,602.24, 497,034 and 131,869.20

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Solution

The fourth proportional to 331,602.24, 497,034 and 131,869.20 is: 197,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,602.24 : 497,034 = 131,869.20 : x
  2. Step 2: Convert to fraction form
    331,602.24/497,034 = 131,869.20/x
  3. Step 3: Cross multiply
    331,602.24x = 497,034 × 131,869.20
  4. Step 4: Simplify right side
    331,602.24x = 65,543,475,952.80
  5. Step 5: Solve for x
    x = 65,543,475,952.80/331,602.24
  6. Step 6: Final answer
    x = 197,656.92

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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.