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Finding the Fourth Proportional to 221,313.47, 332,302.30 and 126,650.54

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Solution

The fourth proportional to 221,313.47, 332,302.30 and 126,650.54 is: 190,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,313.47 : 332,302.30 = 126,650.54 : x
  2. Step 2: Convert to fraction form
    221,313.47/332,302.30 = 126,650.54/x
  3. Step 3: Cross multiply
    221,313.47x = 332,302.30 × 126,650.54
  4. Step 4: Simplify right side
    221,313.47x = 42,086,264,383.17
  5. Step 5: Solve for x
    x = 42,086,264,383.17/221,313.47
  6. Step 6: Final answer
    x = 190,165.86

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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.