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Finding the Fourth Proportional to 433, 597.72 and 308.68

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Solution

The fourth proportional to 433, 597.72 and 308.68 is: 426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    433 : 597.72 = 308.68 : x
  2. Step 2: Convert to fraction form
    433/597.72 = 308.68/x
  3. Step 3: Cross multiply
    433x = 597.72 × 308.68
  4. Step 4: Simplify right side
    433x = 184,504.21
  5. Step 5: Solve for x
    x = 184,504.21/433
  6. Step 6: Final answer
    x = 426.11

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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.