Home / 278,066.20-417,099.30-91,096.60

Finding the Fourth Proportional to 278,066.20, 417,099.30 and 91,096.60

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Solution

The fourth proportional to 278,066.20, 417,099.30 and 91,096.60 is: 136,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,066.20 : 417,099.30 = 91,096.60 : x
  2. Step 2: Convert to fraction form
    278,066.20/417,099.30 = 91,096.60/x
  3. Step 3: Cross multiply
    278,066.20x = 417,099.30 × 91,096.60
  4. Step 4: Simplify right side
    278,066.20x = 37,996,328,092.38
  5. Step 5: Solve for x
    x = 37,996,328,092.38/278,066.20
  6. Step 6: Final answer
    x = 136,644.90

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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.