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Finding the Fourth Proportional to 279,159.90, 419,776.65 and 233,540.70

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Solution

The fourth proportional to 279,159.90, 419,776.65 and 233,540.70 is: 351,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,159.90 : 419,776.65 = 233,540.70 : x
  2. Step 2: Convert to fraction form
    279,159.90/419,776.65 = 233,540.70/x
  3. Step 3: Cross multiply
    279,159.90x = 419,776.65 × 233,540.70
  4. Step 4: Simplify right side
    279,159.90x = 98,034,932,684.66
  5. Step 5: Solve for x
    x = 98,034,932,684.66/279,159.90
  6. Step 6: Final answer
    x = 351,178.42

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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.