Home / 250,221.52-345,311.40-137,043.28

Finding the Fourth Proportional to 250,221.52, 345,311.40 and 137,043.28

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Solution

The fourth proportional to 250,221.52, 345,311.40 and 137,043.28 is: 189,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,221.52 : 345,311.40 = 137,043.28 : x
  2. Step 2: Convert to fraction form
    250,221.52/345,311.40 = 137,043.28/x
  3. Step 3: Cross multiply
    250,221.52x = 345,311.40 × 137,043.28
  4. Step 4: Simplify right side
    250,221.52x = 47,322,606,877.39
  5. Step 5: Solve for x
    x = 47,322,606,877.39/250,221.52
  6. Step 6: Final answer
    x = 189,122.85

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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.