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Finding the Fourth Proportional to 327,318.30, 490,977.45 and 265,110.30

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Solution

The fourth proportional to 327,318.30, 490,977.45 and 265,110.30 is: 397,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,318.30 : 490,977.45 = 265,110.30 : x
  2. Step 2: Convert to fraction form
    327,318.30/490,977.45 = 265,110.30/x
  3. Step 3: Cross multiply
    327,318.30x = 490,977.45 × 265,110.30
  4. Step 4: Simplify right side
    327,318.30x = 130,163,179,062.74
  5. Step 5: Solve for x
    x = 130,163,179,062.74/327,318.30
  6. Step 6: Final answer
    x = 397,665.45

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Similar ratio
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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.