Home / 221,455.10-332,021.72-88,295.42

Finding the Fourth Proportional to 221,455.10, 332,021.72 and 88,295.42

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Solution

The fourth proportional to 221,455.10, 332,021.72 and 88,295.42 is: 132,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,455.10 : 332,021.72 = 88,295.42 : x
  2. Step 2: Convert to fraction form
    221,455.10/332,021.72 = 88,295.42/x
  3. Step 3: Cross multiply
    221,455.10x = 332,021.72 × 88,295.42
  4. Step 4: Simplify right side
    221,455.10x = 29,315,997,216.52
  5. Step 5: Solve for x
    x = 29,315,997,216.52/221,455.10
  6. Step 6: Final answer
    x = 132,378.97

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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.