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Finding the Fourth Proportional to 376.29, 561.13 and 346.37

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Solution

The fourth proportional to 376.29, 561.13 and 346.37 is: 516.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.29 : 561.13 = 346.37 : x
  2. Step 2: Convert to fraction form
    376.29/561.13 = 346.37/x
  3. Step 3: Cross multiply
    376.29x = 561.13 × 346.37
  4. Step 4: Simplify right side
    376.29x = 194,359.13
  5. Step 5: Solve for x
    x = 194,359.13/376.29
  6. Step 6: Final answer
    x = 516.51

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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.