Home / 288,717.89-398,433.26-159,665.04

Finding the Fourth Proportional to 288,717.89, 398,433.26 and 159,665.04

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Solution

The fourth proportional to 288,717.89, 398,433.26 and 159,665.04 is: 220,339.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,717.89 : 398,433.26 = 159,665.04 : x
  2. Step 2: Convert to fraction form
    288,717.89/398,433.26 = 159,665.04/x
  3. Step 3: Cross multiply
    288,717.89x = 398,433.26 × 159,665.04
  4. Step 4: Simplify right side
    288,717.89x = 63,615,864,288.52
  5. Step 5: Solve for x
    x = 63,615,864,288.52/288,717.89
  6. Step 6: Final answer
    x = 220,339.18

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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.