Home / 398,517.12-597,736.80-114,197.40

Finding the Fourth Proportional to 398,517.12, 597,736.80 and 114,197.40

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Solution

The fourth proportional to 398,517.12, 597,736.80 and 114,197.40 is: 171,284.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,517.12 : 597,736.80 = 114,197.40 : x
  2. Step 2: Convert to fraction form
    398,517.12/597,736.80 = 114,197.40/x
  3. Step 3: Cross multiply
    398,517.12x = 597,736.80 × 114,197.40
  4. Step 4: Simplify right side
    398,517.12x = 68,259,988,444.32
  5. Step 5: Solve for x
    x = 68,259,988,444.32/398,517.12
  6. Step 6: Final answer
    x = 171,284.96

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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.