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Finding the Fourth Proportional to 276,449.10, 414,141.86 and 169,520.90

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Solution

The fourth proportional to 276,449.10, 414,141.86 and 169,520.90 is: 253,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,449.10 : 414,141.86 = 169,520.90 : x
  2. Step 2: Convert to fraction form
    276,449.10/414,141.86 = 169,520.90/x
  3. Step 3: Cross multiply
    276,449.10x = 414,141.86 × 169,520.90
  4. Step 4: Simplify right side
    276,449.10x = 70,205,701,517.51
  5. Step 5: Solve for x
    x = 70,205,701,517.51/276,449.10
  6. Step 6: Final answer
    x = 253,955.25

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1.5x scale

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.