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Finding the Fourth Proportional to 243,766.63, 336,380.61 and 223,689.97

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Solution

The fourth proportional to 243,766.63, 336,380.61 and 223,689.97 is: 308,676.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,766.63 : 336,380.61 = 223,689.97 : x
  2. Step 2: Convert to fraction form
    243,766.63/336,380.61 = 223,689.97/x
  3. Step 3: Cross multiply
    243,766.63x = 336,380.61 × 223,689.97
  4. Step 4: Simplify right side
    243,766.63x = 75,244,968,559.48
  5. Step 5: Solve for x
    x = 75,244,968,559.48/243,766.63
  6. Step 6: Final answer
    x = 308,676.25

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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.