Home / 261,296.82-392,011.05-74,308.32

Finding the Fourth Proportional to 261,296.82, 392,011.05 and 74,308.32

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Solution

The fourth proportional to 261,296.82, 392,011.05 and 74,308.32 is: 111,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,296.82 : 392,011.05 = 74,308.32 : x
  2. Step 2: Convert to fraction form
    261,296.82/392,011.05 = 74,308.32/x
  3. Step 3: Cross multiply
    261,296.82x = 392,011.05 × 74,308.32
  4. Step 4: Simplify right side
    261,296.82x = 29,129,682,546.94
  5. Step 5: Solve for x
    x = 29,129,682,546.94/261,296.82
  6. Step 6: Final answer
    x = 111,481.20

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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.