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Finding the Fourth Proportional to 276,381.68, 414,585.48 and 89,407.76

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Solution

The fourth proportional to 276,381.68, 414,585.48 and 89,407.76 is: 134,115.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,381.68 : 414,585.48 = 89,407.76 : x
  2. Step 2: Convert to fraction form
    276,381.68/414,585.48 = 89,407.76/x
  3. Step 3: Cross multiply
    276,381.68x = 414,585.48 × 89,407.76
  4. Step 4: Simplify right side
    276,381.68x = 37,067,159,095.32
  5. Step 5: Solve for x
    x = 37,067,159,095.32/276,381.68
  6. Step 6: Final answer
    x = 134,115.83

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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.