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Finding the Fourth Proportional to 363.39, 544.93 and 345.16

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Solution

The fourth proportional to 363.39, 544.93 and 345.16 is: 517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.39 : 544.93 = 345.16 : x
  2. Step 2: Convert to fraction form
    363.39/544.93 = 345.16/x
  3. Step 3: Cross multiply
    363.39x = 544.93 × 345.16
  4. Step 4: Simplify right side
    363.39x = 188,087.86
  5. Step 5: Solve for x
    x = 188,087.86/363.39
  6. Step 6: Final answer
    x = 517.60

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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.