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Finding the Fourth Proportional to 329,372.84, 494,064.78 and 92,721.20

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Solution

The fourth proportional to 329,372.84, 494,064.78 and 92,721.20 is: 139,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,372.84 : 494,064.78 = 92,721.20 : x
  2. Step 2: Convert to fraction form
    329,372.84/494,064.78 = 92,721.20/x
  3. Step 3: Cross multiply
    329,372.84x = 494,064.78 × 92,721.20
  4. Step 4: Simplify right side
    329,372.84x = 45,810,279,279.34
  5. Step 5: Solve for x
    x = 45,810,279,279.34/329,372.84
  6. Step 6: Final answer
    x = 139,083.35

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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.