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Finding the Fourth Proportional to 248,591.97, 343,057.01 and 135,414.72

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Solution

The fourth proportional to 248,591.97, 343,057.01 and 135,414.72 is: 186,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,591.97 : 343,057.01 = 135,414.72 : x
  2. Step 2: Convert to fraction form
    248,591.97/343,057.01 = 135,414.72/x
  3. Step 3: Cross multiply
    248,591.97x = 343,057.01 × 135,414.72
  4. Step 4: Simplify right side
    248,591.97x = 46,454,968,276.11
  5. Step 5: Solve for x
    x = 46,454,968,276.11/248,591.97
  6. Step 6: Final answer
    x = 186,872.36

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1.5x scale

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.