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Finding the Fourth Proportional to 235,618.70, 325,350 and 218,523.38

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Solution

The fourth proportional to 235,618.70, 325,350 and 218,523.38 is: 301,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,618.70 : 325,350 = 218,523.38 : x
  2. Step 2: Convert to fraction form
    235,618.70/325,350 = 218,523.38/x
  3. Step 3: Cross multiply
    235,618.70x = 325,350 × 218,523.38
  4. Step 4: Simplify right side
    235,618.70x = 71,096,581,683
  5. Step 5: Solve for x
    x = 71,096,581,683/235,618.70
  6. Step 6: Final answer
    x = 301,744.22

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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.