Home / 321,905.73-482,944.71-111,543.66

Finding the Fourth Proportional to 321,905.73, 482,944.71 and 111,543.66

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Solution

The fourth proportional to 321,905.73, 482,944.71 and 111,543.66 is: 167,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,905.73 : 482,944.71 = 111,543.66 : x
  2. Step 2: Convert to fraction form
    321,905.73/482,944.71 = 111,543.66/x
  3. Step 3: Cross multiply
    321,905.73x = 482,944.71 × 111,543.66
  4. Step 4: Simplify right side
    321,905.73x = 53,869,420,531.04
  5. Step 5: Solve for x
    x = 53,869,420,531.04/321,905.73
  6. Step 6: Final answer
    x = 167,345.33

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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.