Home / 278,113.22-416,922.42-100,580.76

Finding the Fourth Proportional to 278,113.22, 416,922.42 and 100,580.76

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Solution

The fourth proportional to 278,113.22, 416,922.42 and 100,580.76 is: 150,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,113.22 : 416,922.42 = 100,580.76 : x
  2. Step 2: Convert to fraction form
    278,113.22/416,922.42 = 100,580.76/x
  3. Step 3: Cross multiply
    278,113.22x = 416,922.42 × 100,580.76
  4. Step 4: Simplify right side
    278,113.22x = 41,934,374,241.82
  5. Step 5: Solve for x
    x = 41,934,374,241.82/278,113.22
  6. Step 6: Final answer
    x = 150,781.67

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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.