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Finding the Fourth Proportional to 327,103.64, 490,454.53 and 127,190.99

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Solution

The fourth proportional to 327,103.64, 490,454.53 and 127,190.99 is: 190,708.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,103.64 : 490,454.53 = 127,190.99 : x
  2. Step 2: Convert to fraction form
    327,103.64/490,454.53 = 127,190.99/x
  3. Step 3: Cross multiply
    327,103.64x = 490,454.53 × 127,190.99
  4. Step 4: Simplify right side
    327,103.64x = 62,381,398,128.84
  5. Step 5: Solve for x
    x = 62,381,398,128.84/327,103.64
  6. Step 6: Final answer
    x = 190,708.36

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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.