Home / 278,023.20-416,712.16-127,948.44

Finding the Fourth Proportional to 278,023.20, 416,712.16 and 127,948.44

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Solution

The fourth proportional to 278,023.20, 416,712.16 and 127,948.44 is: 191,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,023.20 : 416,712.16 = 127,948.44 : x
  2. Step 2: Convert to fraction form
    278,023.20/416,712.16 = 127,948.44/x
  3. Step 3: Cross multiply
    278,023.20x = 416,712.16 × 127,948.44
  4. Step 4: Simplify right side
    278,023.20x = 53,317,670,801.03
  5. Step 5: Solve for x
    x = 53,317,670,801.03/278,023.20
  6. Step 6: Final answer
    x = 191,774.18

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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.