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Finding the Fourth Proportional to 329,608.09, 494,248.51 and 104,939.30

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Solution

The fourth proportional to 329,608.09, 494,248.51 and 104,939.30 is: 157,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,608.09 : 494,248.51 = 104,939.30 : x
  2. Step 2: Convert to fraction form
    329,608.09/494,248.51 = 104,939.30/x
  3. Step 3: Cross multiply
    329,608.09x = 494,248.51 × 104,939.30
  4. Step 4: Simplify right side
    329,608.09x = 51,866,090,956.95
  5. Step 5: Solve for x
    x = 51,866,090,956.95/329,608.09
  6. Step 6: Final answer
    x = 157,356.85

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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.