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Finding the Fourth Proportional to 329.07, 492.89 and 264.51

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Solution

The fourth proportional to 329.07, 492.89 and 264.51 is: 396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.07 : 492.89 = 264.51 : x
  2. Step 2: Convert to fraction form
    329.07/492.89 = 264.51/x
  3. Step 3: Cross multiply
    329.07x = 492.89 × 264.51
  4. Step 4: Simplify right side
    329.07x = 130,373.01
  5. Step 5: Solve for x
    x = 130,373.01/329.07
  6. Step 6: Final answer
    x = 396.19

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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.