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Finding the Fourth Proportional to 223,467.54, 308,385.18 and 122,865.54

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Solution

The fourth proportional to 223,467.54, 308,385.18 and 122,865.54 is: 169,554.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,467.54 : 308,385.18 = 122,865.54 : x
  2. Step 2: Convert to fraction form
    223,467.54/308,385.18 = 122,865.54/x
  3. Step 3: Cross multiply
    223,467.54x = 308,385.18 × 122,865.54
  4. Step 4: Simplify right side
    223,467.54x = 37,889,911,668.70
  5. Step 5: Solve for x
    x = 37,889,911,668.70/223,467.54
  6. Step 6: Final answer
    x = 169,554.43

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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.