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Finding the Fourth Proportional to 329,490.06, 494,237.73 and 215,733.77

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Solution

The fourth proportional to 329,490.06, 494,237.73 and 215,733.77 is: 323,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,490.06 : 494,237.73 = 215,733.77 : x
  2. Step 2: Convert to fraction form
    329,490.06/494,237.73 = 215,733.77/x
  3. Step 3: Cross multiply
    329,490.06x = 494,237.73 × 215,733.77
  4. Step 4: Simplify right side
    329,490.06x = 106,623,766,297.95
  5. Step 5: Solve for x
    x = 106,623,766,297.95/329,490.06
  6. Step 6: Final answer
    x = 323,602.38

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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.