Home / 211,949.82-292,489.92-121,305.42

Finding the Fourth Proportional to 211,949.82, 292,489.92 and 121,305.42

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Solution

The fourth proportional to 211,949.82, 292,489.92 and 121,305.42 is: 167,401.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,949.82 : 292,489.92 = 121,305.42 : x
  2. Step 2: Convert to fraction form
    211,949.82/292,489.92 = 121,305.42/x
  3. Step 3: Cross multiply
    211,949.82x = 292,489.92 × 121,305.42
  4. Step 4: Simplify right side
    211,949.82x = 35,480,612,591.37
  5. Step 5: Solve for x
    x = 35,480,612,591.37/211,949.82
  6. Step 6: Final answer
    x = 167,401.00

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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.