Home / 422,123.78-582,525.01-231,137.18

Finding the Fourth Proportional to 422,123.78, 582,525.01 and 231,137.18

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Solution

The fourth proportional to 422,123.78, 582,525.01 and 231,137.18 is: 318,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,123.78 : 582,525.01 = 231,137.18 : x
  2. Step 2: Convert to fraction form
    422,123.78/582,525.01 = 231,137.18/x
  3. Step 3: Cross multiply
    422,123.78x = 582,525.01 × 231,137.18
  4. Step 4: Simplify right side
    422,123.78x = 134,643,188,090.87
  5. Step 5: Solve for x
    x = 134,643,188,090.87/422,123.78
  6. Step 6: Final answer
    x = 318,966.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.