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Finding the Fourth Proportional to 383.30, 529.08 and 273.10

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Solution

The fourth proportional to 383.30, 529.08 and 273.10 is: 376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.30 : 529.08 = 273.10 : x
  2. Step 2: Convert to fraction form
    383.30/529.08 = 273.10/x
  3. Step 3: Cross multiply
    383.30x = 529.08 × 273.10
  4. Step 4: Simplify right side
    383.30x = 144,489.10
  5. Step 5: Solve for x
    x = 144,489.10/383.30
  6. Step 6: Final answer
    x = 376.96

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Why These Related Problems?

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