Home / 198,389.07-297,474.26-103,382.16

Finding the Fourth Proportional to 198,389.07, 297,474.26 and 103,382.16

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Solution

The fourth proportional to 198,389.07, 297,474.26 and 103,382.16 is: 155,016.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,389.07 : 297,474.26 = 103,382.16 : x
  2. Step 2: Convert to fraction form
    198,389.07/297,474.26 = 103,382.16/x
  3. Step 3: Cross multiply
    198,389.07x = 297,474.26 × 103,382.16
  4. Step 4: Simplify right side
    198,389.07x = 30,753,531,026.29
  5. Step 5: Solve for x
    x = 30,753,531,026.29/198,389.07
  6. Step 6: Final answer
    x = 155,016.26

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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.