Home / 427,464.17-641,372.87-187,453.88

Finding the Fourth Proportional to 427,464.17, 641,372.87 and 187,453.88

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Solution

The fourth proportional to 427,464.17, 641,372.87 and 187,453.88 is: 281,258.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,464.17 : 641,372.87 = 187,453.88 : x
  2. Step 2: Convert to fraction form
    427,464.17/641,372.87 = 187,453.88/x
  3. Step 3: Cross multiply
    427,464.17x = 641,372.87 × 187,453.88
  4. Step 4: Simplify right side
    427,464.17x = 120,227,833,008.24
  5. Step 5: Solve for x
    x = 120,227,833,008.24/427,464.17
  6. Step 6: Final answer
    x = 281,258.27

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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.