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Finding the Fourth Proportional to 383,662.86, 529,789.05 and 240,668.70

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Solution

The fourth proportional to 383,662.86, 529,789.05 and 240,668.70 is: 332,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,662.86 : 529,789.05 = 240,668.70 : x
  2. Step 2: Convert to fraction form
    383,662.86/529,789.05 = 240,668.70/x
  3. Step 3: Cross multiply
    383,662.86x = 529,789.05 × 240,668.70
  4. Step 4: Simplify right side
    383,662.86x = 127,503,641,937.74
  5. Step 5: Solve for x
    x = 127,503,641,937.74/383,662.86
  6. Step 6: Final answer
    x = 332,332.51

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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.