Home / 281,729.11-388,785.42-152,671.17

Finding the Fourth Proportional to 281,729.11, 388,785.42 and 152,671.17

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Solution

The fourth proportional to 281,729.11, 388,785.42 and 152,671.17 is: 210,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,729.11 : 388,785.42 = 152,671.17 : x
  2. Step 2: Convert to fraction form
    281,729.11/388,785.42 = 152,671.17/x
  3. Step 3: Cross multiply
    281,729.11x = 388,785.42 × 152,671.17
  4. Step 4: Simplify right side
    281,729.11x = 59,356,324,950.34
  5. Step 5: Solve for x
    x = 59,356,324,950.34/281,729.11
  6. Step 6: Final answer
    x = 210,685.81

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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.