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Finding the Fourth Proportional to 278,076.60, 417,110.58 and 67,712.76

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Solution

The fourth proportional to 278,076.60, 417,110.58 and 67,712.76 is: 101,568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,076.60 : 417,110.58 = 67,712.76 : x
  2. Step 2: Convert to fraction form
    278,076.60/417,110.58 = 67,712.76/x
  3. Step 3: Cross multiply
    278,076.60x = 417,110.58 × 67,712.76
  4. Step 4: Simplify right side
    278,076.60x = 28,243,708,597.00
  5. Step 5: Solve for x
    x = 28,243,708,597.00/278,076.60
  6. Step 6: Final answer
    x = 101,568.09

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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.