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Finding the Fourth Proportional to 365.15, 543.98 and 347.73

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Solution

The fourth proportional to 365.15, 543.98 and 347.73 is: 518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.15 : 543.98 = 347.73 : x
  2. Step 2: Convert to fraction form
    365.15/543.98 = 347.73/x
  3. Step 3: Cross multiply
    365.15x = 543.98 × 347.73
  4. Step 4: Simplify right side
    365.15x = 189,156.43
  5. Step 5: Solve for x
    x = 189,156.43/365.15
  6. Step 6: Final answer
    x = 518.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.