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Finding the Fourth Proportional to 368.91, 553.23 and 183.74

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Solution

The fourth proportional to 368.91, 553.23 and 183.74 is: 275.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.91 : 553.23 = 183.74 : x
  2. Step 2: Convert to fraction form
    368.91/553.23 = 183.74/x
  3. Step 3: Cross multiply
    368.91x = 553.23 × 183.74
  4. Step 4: Simplify right side
    368.91x = 101,647.71
  5. Step 5: Solve for x
    x = 101,647.71/368.91
  6. Step 6: Final answer
    x = 275.54

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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.