Home / 278,380.46-417,570.60-100,887.14

Finding the Fourth Proportional to 278,380.46, 417,570.60 and 100,887.14

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Solution

The fourth proportional to 278,380.46, 417,570.60 and 100,887.14 is: 151,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,380.46 : 417,570.60 = 100,887.14 : x
  2. Step 2: Convert to fraction form
    278,380.46/417,570.60 = 100,887.14/x
  3. Step 3: Cross multiply
    278,380.46x = 417,570.60 × 100,887.14
  4. Step 4: Simplify right side
    278,380.46x = 42,127,503,582.08
  5. Step 5: Solve for x
    x = 42,127,503,582.08/278,380.46
  6. Step 6: Final answer
    x = 151,330.68

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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.