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Finding the Fourth Proportional to 365.70, 551.35 and 361.62

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Solution

The fourth proportional to 365.70, 551.35 and 361.62 is: 545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.70 : 551.35 = 361.62 : x
  2. Step 2: Convert to fraction form
    365.70/551.35 = 361.62/x
  3. Step 3: Cross multiply
    365.70x = 551.35 × 361.62
  4. Step 4: Simplify right side
    365.70x = 199,379.19
  5. Step 5: Solve for x
    x = 199,379.19/365.70
  6. Step 6: Final answer
    x = 545.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.