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Finding the Fourth Proportional to 305,248.66, 421,246.92 and 169,284.49

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Solution

The fourth proportional to 305,248.66, 421,246.92 and 169,284.49 is: 233,614.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,248.66 : 421,246.92 = 169,284.49 : x
  2. Step 2: Convert to fraction form
    305,248.66/421,246.92 = 169,284.49/x
  3. Step 3: Cross multiply
    305,248.66x = 421,246.92 × 169,284.49
  4. Step 4: Simplify right side
    305,248.66x = 71,310,570,016.27
  5. Step 5: Solve for x
    x = 71,310,570,016.27/305,248.66
  6. Step 6: Final answer
    x = 233,614.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.