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Finding the Fourth Proportional to 243,499.25, 335,930.71 and 161,866.97

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Solution

The fourth proportional to 243,499.25, 335,930.71 and 161,866.97 is: 223,311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,499.25 : 335,930.71 = 161,866.97 : x
  2. Step 2: Convert to fraction form
    243,499.25/335,930.71 = 161,866.97/x
  3. Step 3: Cross multiply
    243,499.25x = 335,930.71 × 161,866.97
  4. Step 4: Simplify right side
    243,499.25x = 54,376,087,526.18
  5. Step 5: Solve for x
    x = 54,376,087,526.18/243,499.25
  6. Step 6: Final answer
    x = 223,311.11

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1.5x scale

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.