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Finding the Fourth Proportional to 329,170.31, 454,129.82 and 243,335.37

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Solution

The fourth proportional to 329,170.31, 454,129.82 and 243,335.37 is: 335,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,170.31 : 454,129.82 = 243,335.37 : x
  2. Step 2: Convert to fraction form
    329,170.31/454,129.82 = 243,335.37/x
  3. Step 3: Cross multiply
    329,170.31x = 454,129.82 × 243,335.37
  4. Step 4: Simplify right side
    329,170.31x = 110,505,846,561.06
  5. Step 5: Solve for x
    x = 110,505,846,561.06/329,170.31
  6. Step 6: Final answer
    x = 335,710.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.