Home / 258,704.14-357,008.15-143,982.75

Finding the Fourth Proportional to 258,704.14, 357,008.15 and 143,982.75

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Solution

The fourth proportional to 258,704.14, 357,008.15 and 143,982.75 is: 198,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,704.14 : 357,008.15 = 143,982.75 : x
  2. Step 2: Convert to fraction form
    258,704.14/357,008.15 = 143,982.75/x
  3. Step 3: Cross multiply
    258,704.14x = 357,008.15 × 143,982.75
  4. Step 4: Simplify right side
    258,704.14x = 51,403,015,209.41
  5. Step 5: Solve for x
    x = 51,403,015,209.41/258,704.14
  6. Step 6: Final answer
    x = 198,694.21

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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.