Home / 278,268.90-417,512.70-109,760.55

Finding the Fourth Proportional to 278,268.90, 417,512.70 and 109,760.55

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Solution

The fourth proportional to 278,268.90, 417,512.70 and 109,760.55 is: 164,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,268.90 : 417,512.70 = 109,760.55 : x
  2. Step 2: Convert to fraction form
    278,268.90/417,512.70 = 109,760.55/x
  3. Step 3: Cross multiply
    278,268.90x = 417,512.70 × 109,760.55
  4. Step 4: Simplify right side
    278,268.90x = 45,826,423,583.99
  5. Step 5: Solve for x
    x = 45,826,423,583.99/278,268.90
  6. Step 6: Final answer
    x = 164,683.96

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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.