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Finding the Fourth Proportional to 395.10, 594.90 and 370.80

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Solution

The fourth proportional to 395.10, 594.90 and 370.80 is: 558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.10 : 594.90 = 370.80 : x
  2. Step 2: Convert to fraction form
    395.10/594.90 = 370.80/x
  3. Step 3: Cross multiply
    395.10x = 594.90 × 370.80
  4. Step 4: Simplify right side
    395.10x = 220,588.92
  5. Step 5: Solve for x
    x = 220,588.92/395.10
  6. Step 6: Final answer
    x = 558.31

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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.