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Finding the Fourth Proportional to 383,668, 529,530.24 and 240,550.72

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Solution

The fourth proportional to 383,668, 529,530.24 and 240,550.72 is: 332,002.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,668 : 529,530.24 = 240,550.72 : x
  2. Step 2: Convert to fraction form
    383,668/529,530.24 = 240,550.72/x
  3. Step 3: Cross multiply
    383,668x = 529,530.24 × 240,550.72
  4. Step 4: Simplify right side
    383,668x = 127,378,880,493.77
  5. Step 5: Solve for x
    x = 127,378,880,493.77/383,668
  6. Step 6: Final answer
    x = 332,002.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.