Home / 253,932.60-380,924.82-87,699

Finding the Fourth Proportional to 253,932.60, 380,924.82 and 87,699

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Solution

The fourth proportional to 253,932.60, 380,924.82 and 87,699 is: 131,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,932.60 : 380,924.82 = 87,699 : x
  2. Step 2: Convert to fraction form
    253,932.60/380,924.82 = 87,699/x
  3. Step 3: Cross multiply
    253,932.60x = 380,924.82 × 87,699
  4. Step 4: Simplify right side
    253,932.60x = 33,406,725,789.18
  5. Step 5: Solve for x
    x = 33,406,725,789.18/253,932.60
  6. Step 6: Final answer
    x = 131,557.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.