Home / 278,023.74-416,712.96-127,948.92

Finding the Fourth Proportional to 278,023.74, 416,712.96 and 127,948.92

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Solution

The fourth proportional to 278,023.74, 416,712.96 and 127,948.92 is: 191,774.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,023.74 : 416,712.96 = 127,948.92 : x
  2. Step 2: Convert to fraction form
    278,023.74/416,712.96 = 127,948.92/x
  3. Step 3: Cross multiply
    278,023.74x = 416,712.96 × 127,948.92
  4. Step 4: Simplify right side
    278,023.74x = 53,317,973,182.00
  5. Step 5: Solve for x
    x = 53,317,973,182.00/278,023.74
  6. Step 6: Final answer
    x = 191,774.89

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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.