Home / 279,311.25-385,446.27-151,984.65

Finding the Fourth Proportional to 279,311.25, 385,446.27 and 151,984.65

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Solution

The fourth proportional to 279,311.25, 385,446.27 and 151,984.65 is: 209,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,311.25 : 385,446.27 = 151,984.65 : x
  2. Step 2: Convert to fraction form
    279,311.25/385,446.27 = 151,984.65/x
  3. Step 3: Cross multiply
    279,311.25x = 385,446.27 × 151,984.65
  4. Step 4: Simplify right side
    279,311.25x = 58,581,916,439.76
  5. Step 5: Solve for x
    x = 58,581,916,439.76/279,311.25
  6. Step 6: Final answer
    x = 209,737.05

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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.