Home / 278,683.20-417,892.91-107,984.75

Finding the Fourth Proportional to 278,683.20, 417,892.91 and 107,984.75

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Solution

The fourth proportional to 278,683.20, 417,892.91 and 107,984.75 is: 161,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,683.20 : 417,892.91 = 107,984.75 : x
  2. Step 2: Convert to fraction form
    278,683.20/417,892.91 = 107,984.75/x
  3. Step 3: Cross multiply
    278,683.20x = 417,892.91 × 107,984.75
  4. Step 4: Simplify right side
    278,683.20x = 45,126,058,783.73
  5. Step 5: Solve for x
    x = 45,126,058,783.73/278,683.20
  6. Step 6: Final answer
    x = 161,926.01

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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.