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Finding the Fourth Proportional to 203,237.08, 280,463.37 and 122,668

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Solution

The fourth proportional to 203,237.08, 280,463.37 and 122,668 is: 169,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,237.08 : 280,463.37 = 122,668 : x
  2. Step 2: Convert to fraction form
    203,237.08/280,463.37 = 122,668/x
  3. Step 3: Cross multiply
    203,237.08x = 280,463.37 × 122,668
  4. Step 4: Simplify right side
    203,237.08x = 34,403,880,671.16
  5. Step 5: Solve for x
    x = 34,403,880,671.16/203,237.08
  6. Step 6: Final answer
    x = 169,279.55

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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.