Home / 251,961.30-347,707.07-137,239.58

Finding the Fourth Proportional to 251,961.30, 347,707.07 and 137,239.58

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Solution

The fourth proportional to 251,961.30, 347,707.07 and 137,239.58 is: 189,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,961.30 : 347,707.07 = 137,239.58 : x
  2. Step 2: Convert to fraction form
    251,961.30/347,707.07 = 137,239.58/x
  3. Step 3: Cross multiply
    251,961.30x = 347,707.07 × 137,239.58
  4. Step 4: Simplify right side
    251,961.30x = 47,719,172,249.83
  5. Step 5: Solve for x
    x = 47,719,172,249.83/251,961.30
  6. Step 6: Final answer
    x = 189,390.88

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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.