Home / 214,764.80-296,278.18-138,256.48

Finding the Fourth Proportional to 214,764.80, 296,278.18 and 138,256.48

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Solution

The fourth proportional to 214,764.80, 296,278.18 and 138,256.48 is: 190,731.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,764.80 : 296,278.18 = 138,256.48 : x
  2. Step 2: Convert to fraction form
    214,764.80/296,278.18 = 138,256.48/x
  3. Step 3: Cross multiply
    214,764.80x = 296,278.18 × 138,256.48
  4. Step 4: Simplify right side
    214,764.80x = 40,962,378,267.61
  5. Step 5: Solve for x
    x = 40,962,378,267.61/214,764.80
  6. Step 6: Final answer
    x = 190,731.34

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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.