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Finding the Fourth Proportional to 440,441.70, 660,662.55 and 230,489.70

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Solution

The fourth proportional to 440,441.70, 660,662.55 and 230,489.70 is: 345,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,441.70 : 660,662.55 = 230,489.70 : x
  2. Step 2: Convert to fraction form
    440,441.70/660,662.55 = 230,489.70/x
  3. Step 3: Cross multiply
    440,441.70x = 660,662.55 × 230,489.70
  4. Step 4: Simplify right side
    440,441.70x = 152,275,912,950.74
  5. Step 5: Solve for x
    x = 152,275,912,950.74/440,441.70
  6. Step 6: Final answer
    x = 345,734.55

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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.