Home / 288,680.26-398,371.68-159,615.33

Finding the Fourth Proportional to 288,680.26, 398,371.68 and 159,615.33

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Solution

The fourth proportional to 288,680.26, 398,371.68 and 159,615.33 is: 220,265.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,680.26 : 398,371.68 = 159,615.33 : x
  2. Step 2: Convert to fraction form
    288,680.26/398,371.68 = 159,615.33/x
  3. Step 3: Cross multiply
    288,680.26x = 398,371.68 × 159,615.33
  4. Step 4: Simplify right side
    288,680.26x = 63,586,227,165.85
  5. Step 5: Solve for x
    x = 63,586,227,165.85/288,680.26
  6. Step 6: Final answer
    x = 220,265.24

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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.