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Finding the Fourth Proportional to 278,377.74, 417,527.73 and 118,517.76

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Solution

The fourth proportional to 278,377.74, 417,527.73 and 118,517.76 is: 177,760.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,377.74 : 417,527.73 = 118,517.76 : x
  2. Step 2: Convert to fraction form
    278,377.74/417,527.73 = 118,517.76/x
  3. Step 3: Cross multiply
    278,377.74x = 417,527.73 × 118,517.76
  4. Step 4: Simplify right side
    278,377.74x = 49,484,451,297.48
  5. Step 5: Solve for x
    x = 49,484,451,297.48/278,377.74
  6. Step 6: Final answer
    x = 177,760.09

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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.