Home / 221,021.90-331,532.85-73,277.90

Finding the Fourth Proportional to 221,021.90, 331,532.85 and 73,277.90

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Solution

The fourth proportional to 221,021.90, 331,532.85 and 73,277.90 is: 109,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,021.90 : 331,532.85 = 73,277.90 : x
  2. Step 2: Convert to fraction form
    221,021.90/331,532.85 = 73,277.90/x
  3. Step 3: Cross multiply
    221,021.90x = 331,532.85 × 73,277.90
  4. Step 4: Simplify right side
    221,021.90x = 24,294,031,029.02
  5. Step 5: Solve for x
    x = 24,294,031,029.02/221,021.90
  6. Step 6: Final answer
    x = 109,916.85

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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.