Home / 321,412.33-482,127.60-121,695.49

Finding the Fourth Proportional to 321,412.33, 482,127.60 and 121,695.49

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Solution

The fourth proportional to 321,412.33, 482,127.60 and 121,695.49 is: 182,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,412.33 : 482,127.60 = 121,695.49 : x
  2. Step 2: Convert to fraction form
    321,412.33/482,127.60 = 121,695.49/x
  3. Step 3: Cross multiply
    321,412.33x = 482,127.60 × 121,695.49
  4. Step 4: Simplify right side
    321,412.33x = 58,672,754,524.52
  5. Step 5: Solve for x
    x = 58,672,754,524.52/321,412.33
  6. Step 6: Final answer
    x = 182,546.68

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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.