Home / 331,058.26-496,499.64-91,115.20

Finding the Fourth Proportional to 331,058.26, 496,499.64 and 91,115.20

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Solution

The fourth proportional to 331,058.26, 496,499.64 and 91,115.20 is: 136,648.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,058.26 : 496,499.64 = 91,115.20 : x
  2. Step 2: Convert to fraction form
    331,058.26/496,499.64 = 91,115.20/x
  3. Step 3: Cross multiply
    331,058.26x = 496,499.64 × 91,115.20
  4. Step 4: Simplify right side
    331,058.26x = 45,238,663,998.53
  5. Step 5: Solve for x
    x = 45,238,663,998.53/331,058.26
  6. Step 6: Final answer
    x = 136,648.65

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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.