Home / 279,154.12-385,235.94-151,832.68

Finding the Fourth Proportional to 279,154.12, 385,235.94 and 151,832.68

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Solution

The fourth proportional to 279,154.12, 385,235.94 and 151,832.68 is: 209,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,154.12 : 385,235.94 = 151,832.68 : x
  2. Step 2: Convert to fraction form
    279,154.12/385,235.94 = 151,832.68/x
  3. Step 3: Cross multiply
    279,154.12x = 385,235.94 × 151,832.68
  4. Step 4: Simplify right side
    279,154.12x = 58,491,405,202.52
  5. Step 5: Solve for x
    x = 58,491,405,202.52/279,154.12
  6. Step 6: Final answer
    x = 209,530.87

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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.