Home / 221,621.40-332,455.19-71,855.64

Finding the Fourth Proportional to 221,621.40, 332,455.19 and 71,855.64

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Solution

The fourth proportional to 221,621.40, 332,455.19 and 71,855.64 is: 107,790.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,621.40 : 332,455.19 = 71,855.64 : x
  2. Step 2: Convert to fraction form
    221,621.40/332,455.19 = 71,855.64/x
  3. Step 3: Cross multiply
    221,621.40x = 332,455.19 × 71,855.64
  4. Step 4: Simplify right side
    221,621.40x = 23,888,780,089.49
  5. Step 5: Solve for x
    x = 23,888,780,089.49/221,621.40
  6. Step 6: Final answer
    x = 107,790.94

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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.