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Finding the Fourth Proportional to 268,708.20, 403,451.10 and 202,612.20

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Solution

The fourth proportional to 268,708.20, 403,451.10 and 202,612.20 is: 304,211.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,708.20 : 403,451.10 = 202,612.20 : x
  2. Step 2: Convert to fraction form
    268,708.20/403,451.10 = 202,612.20/x
  3. Step 3: Cross multiply
    268,708.20x = 403,451.10 × 202,612.20
  4. Step 4: Simplify right side
    268,708.20x = 81,744,114,963.42
  5. Step 5: Solve for x
    x = 81,744,114,963.42/268,708.20
  6. Step 6: Final answer
    x = 304,211.46

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1.5x scale

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.