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Finding the Fourth Proportional to 221,509.80, 332,315.58 and 63,739.56

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Solution

The fourth proportional to 221,509.80, 332,315.58 and 63,739.56 is: 95,623.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,509.80 : 332,315.58 = 63,739.56 : x
  2. Step 2: Convert to fraction form
    221,509.80/332,315.58 = 63,739.56/x
  3. Step 3: Cross multiply
    221,509.80x = 332,315.58 × 63,739.56
  4. Step 4: Simplify right side
    221,509.80x = 21,181,648,850.34
  5. Step 5: Solve for x
    x = 21,181,648,850.34/221,509.80
  6. Step 6: Final answer
    x = 95,623.98

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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.