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Finding the Fourth Proportional to 383.01, 528.54 and 235.64

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Solution

The fourth proportional to 383.01, 528.54 and 235.64 is: 325.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.01 : 528.54 = 235.64 : x
  2. Step 2: Convert to fraction form
    383.01/528.54 = 235.64/x
  3. Step 3: Cross multiply
    383.01x = 528.54 × 235.64
  4. Step 4: Simplify right side
    383.01x = 124,542.52
  5. Step 5: Solve for x
    x = 124,542.52/383.01
  6. Step 6: Final answer
    x = 325.17

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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.