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Finding the Fourth Proportional to 668.19, 922.08 and 373.44

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Solution

The fourth proportional to 668.19, 922.08 and 373.44 is: 515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.19 : 922.08 = 373.44 : x
  2. Step 2: Convert to fraction form
    668.19/922.08 = 373.44/x
  3. Step 3: Cross multiply
    668.19x = 922.08 × 373.44
  4. Step 4: Simplify right side
    668.19x = 344,341.56
  5. Step 5: Solve for x
    x = 344,341.56/668.19
  6. Step 6: Final answer
    x = 515.33

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