Home / 481,981.25-665,134.16-267,135.15

Finding the Fourth Proportional to 481,981.25, 665,134.16 and 267,135.15

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Solution

The fourth proportional to 481,981.25, 665,134.16 and 267,135.15 is: 368,646.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,981.25 : 665,134.16 = 267,135.15 : x
  2. Step 2: Convert to fraction form
    481,981.25/665,134.16 = 267,135.15/x
  3. Step 3: Cross multiply
    481,981.25x = 665,134.16 × 267,135.15
  4. Step 4: Simplify right side
    481,981.25x = 177,680,709,771.80
  5. Step 5: Solve for x
    x = 177,680,709,771.80/481,981.25
  6. Step 6: Final answer
    x = 368,646.52

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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.