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Finding the Fourth Proportional to 367.40, 555.26 and 361.02

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Solution

The fourth proportional to 367.40, 555.26 and 361.02 is: 545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.40 : 555.26 = 361.02 : x
  2. Step 2: Convert to fraction form
    367.40/555.26 = 361.02/x
  3. Step 3: Cross multiply
    367.40x = 555.26 × 361.02
  4. Step 4: Simplify right side
    367.40x = 200,459.15
  5. Step 5: Solve for x
    x = 200,459.15/367.40
  6. Step 6: Final answer
    x = 545.62

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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.