Home / 267,625.40-401,438.79-90,257.00

Finding the Fourth Proportional to 267,625.40, 401,438.79 and 90,257.00

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Solution

The fourth proportional to 267,625.40, 401,438.79 and 90,257.00 is: 135,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,625.40 : 401,438.79 = 90,257.00 : x
  2. Step 2: Convert to fraction form
    267,625.40/401,438.79 = 90,257.00/x
  3. Step 3: Cross multiply
    267,625.40x = 401,438.79 × 90,257.00
  4. Step 4: Simplify right side
    267,625.40x = 36,232,658,861.84
  5. Step 5: Solve for x
    x = 36,232,658,861.84/267,625.40
  6. Step 6: Final answer
    x = 135,385.73

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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.