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Finding the Fourth Proportional to 419.58, 626.29 and 370.32

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Solution

The fourth proportional to 419.58, 626.29 and 370.32 is: 552.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    419.58 : 626.29 = 370.32 : x
  2. Step 2: Convert to fraction form
    419.58/626.29 = 370.32/x
  3. Step 3: Cross multiply
    419.58x = 626.29 × 370.32
  4. Step 4: Simplify right side
    419.58x = 231,924.44
  5. Step 5: Solve for x
    x = 231,924.44/419.58
  6. Step 6: Final answer
    x = 552.75

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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.