Home / 279,052.20-385,081.43-151,727.90

Finding the Fourth Proportional to 279,052.20, 385,081.43 and 151,727.90

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Solution

The fourth proportional to 279,052.20, 385,081.43 and 151,727.90 is: 209,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,052.20 : 385,081.43 = 151,727.90 : x
  2. Step 2: Convert to fraction form
    279,052.20/385,081.43 = 151,727.90/x
  3. Step 3: Cross multiply
    279,052.20x = 385,081.43 × 151,727.90
  4. Step 4: Simplify right side
    279,052.20x = 58,427,594,018.85
  5. Step 5: Solve for x
    x = 58,427,594,018.85/279,052.20
  6. Step 6: Final answer
    x = 209,378.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.