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Finding the Fourth Proportional to 329,588.85, 493,818.24 and 221,315.26

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Solution

The fourth proportional to 329,588.85, 493,818.24 and 221,315.26 is: 331,593.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,588.85 : 493,818.24 = 221,315.26 : x
  2. Step 2: Convert to fraction form
    329,588.85/493,818.24 = 221,315.26/x
  3. Step 3: Cross multiply
    329,588.85x = 493,818.24 × 221,315.26
  4. Step 4: Simplify right side
    329,588.85x = 109,289,512,178.34
  5. Step 5: Solve for x
    x = 109,289,512,178.34/329,588.85
  6. Step 6: Final answer
    x = 331,593.48

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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.