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Finding the Fourth Proportional to 267,525.62, 401,329.94 and 90,018.78

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Solution

The fourth proportional to 267,525.62, 401,329.94 and 90,018.78 is: 135,042.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,525.62 : 401,329.94 = 90,018.78 : x
  2. Step 2: Convert to fraction form
    267,525.62/401,329.94 = 90,018.78/x
  3. Step 3: Cross multiply
    267,525.62x = 401,329.94 × 90,018.78
  4. Step 4: Simplify right side
    267,525.62x = 36,127,229,621.19
  5. Step 5: Solve for x
    x = 36,127,229,621.19/267,525.62
  6. Step 6: Final answer
    x = 135,042.13

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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.