Home / 279,685.14-385,977.25-152,367.72

Finding the Fourth Proportional to 279,685.14, 385,977.25 and 152,367.72

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Solution

The fourth proportional to 279,685.14, 385,977.25 and 152,367.72 is: 210,273.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,685.14 : 385,977.25 = 152,367.72 : x
  2. Step 2: Convert to fraction form
    279,685.14/385,977.25 = 152,367.72/x
  3. Step 3: Cross multiply
    279,685.14x = 385,977.25 × 152,367.72
  4. Step 4: Simplify right side
    279,685.14x = 58,810,471,624.48
  5. Step 5: Solve for x
    x = 58,810,471,624.48/279,685.14
  6. Step 6: Final answer
    x = 210,273.86

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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.