Home / 278,120.04-416,932.63-100,587.58

Finding the Fourth Proportional to 278,120.04, 416,932.63 and 100,587.58

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Solution

The fourth proportional to 278,120.04, 416,932.63 and 100,587.58 is: 150,791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,120.04 : 416,932.63 = 100,587.58 : x
  2. Step 2: Convert to fraction form
    278,120.04/416,932.63 = 100,587.58/x
  3. Step 3: Cross multiply
    278,120.04x = 416,932.63 × 100,587.58
  4. Step 4: Simplify right side
    278,120.04x = 41,938,244,274.74
  5. Step 5: Solve for x
    x = 41,938,244,274.74/278,120.04
  6. Step 6: Final answer
    x = 150,791.88

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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.