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Finding the Fourth Proportional to 276,612.70, 414,919.05 and 89,643.10

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Solution

The fourth proportional to 276,612.70, 414,919.05 and 89,643.10 is: 134,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,612.70 : 414,919.05 = 89,643.10 : x
  2. Step 2: Convert to fraction form
    276,612.70/414,919.05 = 89,643.10/x
  3. Step 3: Cross multiply
    276,612.70x = 414,919.05 × 89,643.10
  4. Step 4: Simplify right side
    276,612.70x = 37,194,629,891.06
  5. Step 5: Solve for x
    x = 37,194,629,891.06/276,612.70
  6. Step 6: Final answer
    x = 134,464.65

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Similar ratio
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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.