Home / 288,941.91-398,712.68-195,617.80

Finding the Fourth Proportional to 288,941.91, 398,712.68 and 195,617.80

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Solution

The fourth proportional to 288,941.91, 398,712.68 and 195,617.80 is: 269,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,941.91 : 398,712.68 = 195,617.80 : x
  2. Step 2: Convert to fraction form
    288,941.91/398,712.68 = 195,617.80/x
  3. Step 3: Cross multiply
    288,941.91x = 398,712.68 × 195,617.80
  4. Step 4: Simplify right side
    288,941.91x = 77,995,297,547.57
  5. Step 5: Solve for x
    x = 77,995,297,547.57/288,941.91
  6. Step 6: Final answer
    x = 269,934.18

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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.