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Finding the Fourth Proportional to 268,934.20, 403,401.30 and 169,401.40

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Solution

The fourth proportional to 268,934.20, 403,401.30 and 169,401.40 is: 254,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,934.20 : 403,401.30 = 169,401.40 : x
  2. Step 2: Convert to fraction form
    268,934.20/403,401.30 = 169,401.40/x
  3. Step 3: Cross multiply
    268,934.20x = 403,401.30 × 169,401.40
  4. Step 4: Simplify right side
    268,934.20x = 68,336,744,981.82
  5. Step 5: Solve for x
    x = 68,336,744,981.82/268,934.20
  6. Step 6: Final answer
    x = 254,102.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.