Home / 431,270.32-647,205.60-178,552.12

Finding the Fourth Proportional to 431,270.32, 647,205.60 and 178,552.12

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Solution

The fourth proportional to 431,270.32, 647,205.60 and 178,552.12 is: 267,952.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,270.32 : 647,205.60 = 178,552.12 : x
  2. Step 2: Convert to fraction form
    431,270.32/647,205.60 = 178,552.12/x
  3. Step 3: Cross multiply
    431,270.32x = 647,205.60 × 178,552.12
  4. Step 4: Simplify right side
    431,270.32x = 115,559,931,955.87
  5. Step 5: Solve for x
    x = 115,559,931,955.87/431,270.32
  6. Step 6: Final answer
    x = 267,952.43

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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.