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Finding the Fourth Proportional to 370.60, 556.48 and 319.82

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Solution

The fourth proportional to 370.60, 556.48 and 319.82 is: 480.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.60 : 556.48 = 319.82 : x
  2. Step 2: Convert to fraction form
    370.60/556.48 = 319.82/x
  3. Step 3: Cross multiply
    370.60x = 556.48 × 319.82
  4. Step 4: Simplify right side
    370.60x = 177,973.43
  5. Step 5: Solve for x
    x = 177,973.43/370.60
  6. Step 6: Final answer
    x = 480.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.