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Finding the Fourth Proportional to 440,304.40, 660,401.46 and 140,760.13

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Solution

The fourth proportional to 440,304.40, 660,401.46 and 140,760.13 is: 211,122.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,304.40 : 660,401.46 = 140,760.13 : x
  2. Step 2: Convert to fraction form
    440,304.40/660,401.46 = 140,760.13/x
  3. Step 3: Cross multiply
    440,304.40x = 660,401.46 × 140,760.13
  4. Step 4: Simplify right side
    440,304.40x = 92,958,195,361.79
  5. Step 5: Solve for x
    x = 92,958,195,361.79/440,304.40
  6. Step 6: Final answer
    x = 211,122.57

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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.