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Finding the Fourth Proportional to 440,441.20, 660,661.80 and 230,489.20

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Solution

The fourth proportional to 440,441.20, 660,661.80 and 230,489.20 is: 345,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,441.20 : 660,661.80 = 230,489.20 : x
  2. Step 2: Convert to fraction form
    440,441.20/660,661.80 = 230,489.20/x
  3. Step 3: Cross multiply
    440,441.20x = 660,661.80 × 230,489.20
  4. Step 4: Simplify right side
    440,441.20x = 152,275,409,752.56
  5. Step 5: Solve for x
    x = 152,275,409,752.56/440,441.20
  6. Step 6: Final answer
    x = 345,733.80

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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.