Home / 212,524.32-318,371.76-165,557.28

Finding the Fourth Proportional to 212,524.32, 318,371.76 and 165,557.28

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Solution

The fourth proportional to 212,524.32, 318,371.76 and 165,557.28 is: 248,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,524.32 : 318,371.76 = 165,557.28 : x
  2. Step 2: Convert to fraction form
    212,524.32/318,371.76 = 165,557.28/x
  3. Step 3: Cross multiply
    212,524.32x = 318,371.76 × 165,557.28
  4. Step 4: Simplify right side
    212,524.32x = 52,708,762,614.41
  5. Step 5: Solve for x
    x = 52,708,762,614.41/212,524.32
  6. Step 6: Final answer
    x = 248,012.85

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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.