Home / 258,201.85-356,329.23-143,480.04

Finding the Fourth Proportional to 258,201.85, 356,329.23 and 143,480.04

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Solution

The fourth proportional to 258,201.85, 356,329.23 and 143,480.04 is: 198,008.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,201.85 : 356,329.23 = 143,480.04 : x
  2. Step 2: Convert to fraction form
    258,201.85/356,329.23 = 143,480.04/x
  3. Step 3: Cross multiply
    258,201.85x = 356,329.23 × 143,480.04
  4. Step 4: Simplify right side
    258,201.85x = 51,126,132,173.57
  5. Step 5: Solve for x
    x = 51,126,132,173.57/258,201.85
  6. Step 6: Final answer
    x = 198,008.39

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1.5x scale

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.