Home / 428,171.64-591,149.12-267,263.10

Finding the Fourth Proportional to 428,171.64, 591,149.12 and 267,263.10

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Solution

The fourth proportional to 428,171.64, 591,149.12 and 267,263.10 is: 368,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,171.64 : 591,149.12 = 267,263.10 : x
  2. Step 2: Convert to fraction form
    428,171.64/591,149.12 = 267,263.10/x
  3. Step 3: Cross multiply
    428,171.64x = 591,149.12 × 267,263.10
  4. Step 4: Simplify right side
    428,171.64x = 157,992,346,373.47
  5. Step 5: Solve for x
    x = 157,992,346,373.47/428,171.64
  6. Step 6: Final answer
    x = 368,993.02

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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.