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Finding the Fourth Proportional to 327,402.60, 490,643.10 and 242,500.20

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Solution

The fourth proportional to 327,402.60, 490,643.10 and 242,500.20 is: 363,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,402.60 : 490,643.10 = 242,500.20 : x
  2. Step 2: Convert to fraction form
    327,402.60/490,643.10 = 242,500.20/x
  3. Step 3: Cross multiply
    327,402.60x = 490,643.10 × 242,500.20
  4. Step 4: Simplify right side
    327,402.60x = 118,981,049,878.62
  5. Step 5: Solve for x
    x = 118,981,049,878.62/327,402.60
  6. Step 6: Final answer
    x = 363,409.00

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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.