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Finding the Fourth Proportional to 221,838.72, 332,757.80 and 53,358.96

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Solution

The fourth proportional to 221,838.72, 332,757.80 and 53,358.96 is: 80,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,838.72 : 332,757.80 = 53,358.96 : x
  2. Step 2: Convert to fraction form
    221,838.72/332,757.80 = 53,358.96/x
  3. Step 3: Cross multiply
    221,838.72x = 332,757.80 × 53,358.96
  4. Step 4: Simplify right side
    221,838.72x = 17,755,610,139.89
  5. Step 5: Solve for x
    x = 17,755,610,139.89/221,838.72
  6. Step 6: Final answer
    x = 80,038.37

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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.