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Finding the Fourth Proportional to 327,026.20, 490,612.20 and 256,167.40

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Solution

The fourth proportional to 327,026.20, 490,612.20 and 256,167.40 is: 384,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,026.20 : 490,612.20 = 256,167.40 : x
  2. Step 2: Convert to fraction form
    327,026.20/490,612.20 = 256,167.40/x
  3. Step 3: Cross multiply
    327,026.20x = 490,612.20 × 256,167.40
  4. Step 4: Simplify right side
    327,026.20x = 125,678,851,682.28
  5. Step 5: Solve for x
    x = 125,678,851,682.28/327,026.20
  6. Step 6: Final answer
    x = 384,308.20

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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.