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Finding the Fourth Proportional to 613.64, 846.77 and 377.56

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Solution

The fourth proportional to 613.64, 846.77 and 377.56 is: 521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.64 : 846.77 = 377.56 : x
  2. Step 2: Convert to fraction form
    613.64/846.77 = 377.56/x
  3. Step 3: Cross multiply
    613.64x = 846.77 × 377.56
  4. Step 4: Simplify right side
    613.64x = 319,706.48
  5. Step 5: Solve for x
    x = 319,706.48/613.64
  6. Step 6: Final answer
    x = 521.00

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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.