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Finding the Fourth Proportional to 380.03, 568.89 and 242.60

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Solution

The fourth proportional to 380.03, 568.89 and 242.60 is: 363.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.03 : 568.89 = 242.60 : x
  2. Step 2: Convert to fraction form
    380.03/568.89 = 242.60/x
  3. Step 3: Cross multiply
    380.03x = 568.89 × 242.60
  4. Step 4: Simplify right side
    380.03x = 138,009.87
  5. Step 5: Solve for x
    x = 138,009.87/380.03
  6. Step 6: Final answer
    x = 363.16

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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.