Home / 251,921.42-347,667.27-138,744.14

Finding the Fourth Proportional to 251,921.42, 347,667.27 and 138,744.14

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Solution

The fourth proportional to 251,921.42, 347,667.27 and 138,744.14 is: 191,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,921.42 : 347,667.27 = 138,744.14 : x
  2. Step 2: Convert to fraction form
    251,921.42/347,667.27 = 138,744.14/x
  3. Step 3: Cross multiply
    251,921.42x = 347,667.27 × 138,744.14
  4. Step 4: Simplify right side
    251,921.42x = 48,236,796,382.30
  5. Step 5: Solve for x
    x = 48,236,796,382.30/251,921.42
  6. Step 6: Final answer
    x = 191,475.57

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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.