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Finding the Fourth Proportional to 327,066.80, 490,235.70 and 127,320.80

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Solution

The fourth proportional to 327,066.80, 490,235.70 and 127,320.80 is: 190,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,066.80 : 490,235.70 = 127,320.80 : x
  2. Step 2: Convert to fraction form
    327,066.80/490,235.70 = 127,320.80/x
  3. Step 3: Cross multiply
    327,066.80x = 490,235.70 × 127,320.80
  4. Step 4: Simplify right side
    327,066.80x = 62,417,201,512.56
  5. Step 5: Solve for x
    x = 62,417,201,512.56/327,066.80
  6. Step 6: Final answer
    x = 190,839.31

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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.