Home / 288,623.20-398,290.89-202,707.04

Finding the Fourth Proportional to 288,623.20, 398,290.89 and 202,707.04

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Solution

The fourth proportional to 288,623.20, 398,290.89 and 202,707.04 is: 279,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,623.20 : 398,290.89 = 202,707.04 : x
  2. Step 2: Convert to fraction form
    288,623.20/398,290.89 = 202,707.04/x
  3. Step 3: Cross multiply
    288,623.20x = 398,290.89 × 202,707.04
  4. Step 4: Simplify right side
    288,623.20x = 80,736,367,370.87
  5. Step 5: Solve for x
    x = 80,736,367,370.87/288,623.20
  6. Step 6: Final answer
    x = 279,729.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.