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Finding the Fourth Proportional to 276,078.30, 414,117.45 and 118,614.30

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Solution

The fourth proportional to 276,078.30, 414,117.45 and 118,614.30 is: 177,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,078.30 : 414,117.45 = 118,614.30 : x
  2. Step 2: Convert to fraction form
    276,078.30/414,117.45 = 118,614.30/x
  3. Step 3: Cross multiply
    276,078.30x = 414,117.45 × 118,614.30
  4. Step 4: Simplify right side
    276,078.30x = 49,120,251,449.54
  5. Step 5: Solve for x
    x = 49,120,251,449.54/276,078.30
  6. Step 6: Final answer
    x = 177,921.45

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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.