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Finding the Fourth Proportional to 613.33, 846.31 and 377.39

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Solution

The fourth proportional to 613.33, 846.31 and 377.39 is: 520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.33 : 846.31 = 377.39 : x
  2. Step 2: Convert to fraction form
    613.33/846.31 = 377.39/x
  3. Step 3: Cross multiply
    613.33x = 846.31 × 377.39
  4. Step 4: Simplify right side
    613.33x = 319,387.04
  5. Step 5: Solve for x
    x = 319,387.04/613.33
  6. Step 6: Final answer
    x = 520.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.