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Finding the Fourth Proportional to 376.79, 562.01 and 345.33

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Solution

The fourth proportional to 376.79, 562.01 and 345.33 is: 515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.79 : 562.01 = 345.33 : x
  2. Step 2: Convert to fraction form
    376.79/562.01 = 345.33/x
  3. Step 3: Cross multiply
    376.79x = 562.01 × 345.33
  4. Step 4: Simplify right side
    376.79x = 194,077.19
  5. Step 5: Solve for x
    x = 194,077.19/376.79
  6. Step 6: Final answer
    x = 515.09

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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.