Home / 214,961.46-296,367.89-138,343.56

Finding the Fourth Proportional to 214,961.46, 296,367.89 and 138,343.56

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Solution

The fourth proportional to 214,961.46, 296,367.89 and 138,343.56 is: 190,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,961.46 : 296,367.89 = 138,343.56 : x
  2. Step 2: Convert to fraction form
    214,961.46/296,367.89 = 138,343.56/x
  3. Step 3: Cross multiply
    214,961.46x = 296,367.89 × 138,343.56
  4. Step 4: Simplify right side
    214,961.46x = 41,000,588,972.29
  5. Step 5: Solve for x
    x = 41,000,588,972.29/214,961.46
  6. Step 6: Final answer
    x = 190,734.60

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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.