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Finding the Fourth Proportional to 240,571.20, 360,943.20 and 100,372.80

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Solution

The fourth proportional to 240,571.20, 360,943.20 and 100,372.80 is: 150,595.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,571.20 : 360,943.20 = 100,372.80 : x
  2. Step 2: Convert to fraction form
    240,571.20/360,943.20 = 100,372.80/x
  3. Step 3: Cross multiply
    240,571.20x = 360,943.20 × 100,372.80
  4. Step 4: Simplify right side
    240,571.20x = 36,228,879,624.96
  5. Step 5: Solve for x
    x = 36,228,879,624.96/240,571.20
  6. Step 6: Final answer
    x = 150,595.25

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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.