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Finding the Fourth Proportional to 439,168.62, 658,251.12 and 199,465.32

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Solution

The fourth proportional to 439,168.62, 658,251.12 and 199,465.32 is: 298,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,168.62 : 658,251.12 = 199,465.32 : x
  2. Step 2: Convert to fraction form
    439,168.62/658,251.12 = 199,465.32/x
  3. Step 3: Cross multiply
    439,168.62x = 658,251.12 × 199,465.32
  4. Step 4: Simplify right side
    439,168.62x = 131,298,270,291.16
  5. Step 5: Solve for x
    x = 131,298,270,291.16/439,168.62
  6. Step 6: Final answer
    x = 298,970.06

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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.