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Finding the Fourth Proportional to 352,654.62, 486,693.53 and 199,719.87

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Solution

The fourth proportional to 352,654.62, 486,693.53 and 199,719.87 is: 275,630.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,654.62 : 486,693.53 = 199,719.87 : x
  2. Step 2: Convert to fraction form
    352,654.62/486,693.53 = 199,719.87/x
  3. Step 3: Cross multiply
    352,654.62x = 486,693.53 × 199,719.87
  4. Step 4: Simplify right side
    352,654.62x = 97,202,368,541.44
  5. Step 5: Solve for x
    x = 97,202,368,541.44/352,654.62
  6. Step 6: Final answer
    x = 275,630.50

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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.