Home / 260,489.12-388,392.96-238,247.04

Finding the Fourth Proportional to 260,489.12, 388,392.96 and 238,247.04

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Solution

The fourth proportional to 260,489.12, 388,392.96 and 238,247.04 is: 355,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,489.12 : 388,392.96 = 238,247.04 : x
  2. Step 2: Convert to fraction form
    260,489.12/388,392.96 = 238,247.04/x
  3. Step 3: Cross multiply
    260,489.12x = 388,392.96 × 238,247.04
  4. Step 4: Simplify right side
    260,489.12x = 92,533,473,076.84
  5. Step 5: Solve for x
    x = 92,533,473,076.84/260,489.12
  6. Step 6: Final answer
    x = 355,229.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.