Home / 267,822.24-401,759.28-78,278.34

Finding the Fourth Proportional to 267,822.24, 401,759.28 and 78,278.34

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Solution

The fourth proportional to 267,822.24, 401,759.28 and 78,278.34 is: 117,425.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,822.24 : 401,759.28 = 78,278.34 : x
  2. Step 2: Convert to fraction form
    267,822.24/401,759.28 = 78,278.34/x
  3. Step 3: Cross multiply
    267,822.24x = 401,759.28 × 78,278.34
  4. Step 4: Simplify right side
    267,822.24x = 31,449,049,518.00
  5. Step 5: Solve for x
    x = 31,449,049,518.00/267,822.24
  6. Step 6: Final answer
    x = 117,425.09

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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.