Home / 281,701.18-388,755.21-154,382.14

Finding the Fourth Proportional to 281,701.18, 388,755.21 and 154,382.14

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Solution

The fourth proportional to 281,701.18, 388,755.21 and 154,382.14 is: 213,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,701.18 : 388,755.21 = 154,382.14 : x
  2. Step 2: Convert to fraction form
    281,701.18/388,755.21 = 154,382.14/x
  3. Step 3: Cross multiply
    281,701.18x = 388,755.21 × 154,382.14
  4. Step 4: Simplify right side
    281,701.18x = 60,016,861,255.95
  5. Step 5: Solve for x
    x = 60,016,861,255.95/281,701.18
  6. Step 6: Final answer
    x = 213,051.51

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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.