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Finding the Fourth Proportional to 221,314.47, 332,303.80 and 126,651.54

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Solution

The fourth proportional to 221,314.47, 332,303.80 and 126,651.54 is: 190,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,314.47 : 332,303.80 = 126,651.54 : x
  2. Step 2: Convert to fraction form
    221,314.47/332,303.80 = 126,651.54/x
  3. Step 3: Cross multiply
    221,314.47x = 332,303.80 × 126,651.54
  4. Step 4: Simplify right side
    221,314.47x = 42,086,788,017.85
  5. Step 5: Solve for x
    x = 42,086,788,017.85/221,314.47
  6. Step 6: Final answer
    x = 190,167.36

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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.