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Finding the Fourth Proportional to 329.81, 493.53 and 242.93

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Solution

The fourth proportional to 329.81, 493.53 and 242.93 is: 363.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.81 : 493.53 = 242.93 : x
  2. Step 2: Convert to fraction form
    329.81/493.53 = 242.93/x
  3. Step 3: Cross multiply
    329.81x = 493.53 × 242.93
  4. Step 4: Simplify right side
    329.81x = 119,893.57
  5. Step 5: Solve for x
    x = 119,893.57/329.81
  6. Step 6: Final answer
    x = 363.53

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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.