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Finding the Fourth Proportional to 436.68, 603.32 and 306.27

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Solution

The fourth proportional to 436.68, 603.32 and 306.27 is: 423.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.68 : 603.32 = 306.27 : x
  2. Step 2: Convert to fraction form
    436.68/603.32 = 306.27/x
  3. Step 3: Cross multiply
    436.68x = 603.32 × 306.27
  4. Step 4: Simplify right side
    436.68x = 184,777.29
  5. Step 5: Solve for x
    x = 184,777.29/436.68
  6. Step 6: Final answer
    x = 423.14

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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.