Home / 258,200.85-356,327.85-143,479.04

Finding the Fourth Proportional to 258,200.85, 356,327.85 and 143,479.04

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Solution

The fourth proportional to 258,200.85, 356,327.85 and 143,479.04 is: 198,007.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,200.85 : 356,327.85 = 143,479.04 : x
  2. Step 2: Convert to fraction form
    258,200.85/356,327.85 = 143,479.04/x
  3. Step 3: Cross multiply
    258,200.85x = 356,327.85 × 143,479.04
  4. Step 4: Simplify right side
    258,200.85x = 51,125,576,061.62
  5. Step 5: Solve for x
    x = 51,125,576,061.62/258,200.85
  6. Step 6: Final answer
    x = 198,007.00

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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.