Home / 281,700.18-388,753.83-154,381.14

Finding the Fourth Proportional to 281,700.18, 388,753.83 and 154,381.14

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Solution

The fourth proportional to 281,700.18, 388,753.83 and 154,381.14 is: 213,050.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,700.18 : 388,753.83 = 154,381.14 : x
  2. Step 2: Convert to fraction form
    281,700.18/388,753.83 = 154,381.14/x
  3. Step 3: Cross multiply
    281,700.18x = 388,753.83 × 154,381.14
  4. Step 4: Simplify right side
    281,700.18x = 60,016,259,454.77
  5. Step 5: Solve for x
    x = 60,016,259,454.77/281,700.18
  6. Step 6: Final answer
    x = 213,050.13

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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.