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Finding the Fourth Proportional to 361,237.86, 498,319.25 and 223,372.71

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Solution

The fourth proportional to 361,237.86, 498,319.25 and 223,372.71 is: 308,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,237.86 : 498,319.25 = 223,372.71 : x
  2. Step 2: Convert to fraction form
    361,237.86/498,319.25 = 223,372.71/x
  3. Step 3: Cross multiply
    361,237.86x = 498,319.25 × 223,372.71
  4. Step 4: Simplify right side
    361,237.86x = 111,310,920,200.80
  5. Step 5: Solve for x
    x = 111,310,920,200.80/361,237.86
  6. Step 6: Final answer
    x = 308,137.47

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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.