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Finding the Fourth Proportional to 226,518.30, 340,039.80 and 121,542.30

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Solution

The fourth proportional to 226,518.30, 340,039.80 and 121,542.30 is: 182,454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,518.30 : 340,039.80 = 121,542.30 : x
  2. Step 2: Convert to fraction form
    226,518.30/340,039.80 = 121,542.30/x
  3. Step 3: Cross multiply
    226,518.30x = 340,039.80 × 121,542.30
  4. Step 4: Simplify right side
    226,518.30x = 41,329,219,383.54
  5. Step 5: Solve for x
    x = 41,329,219,383.54/226,518.30
  6. Step 6: Final answer
    x = 182,454.22

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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.