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Finding the Fourth Proportional to 477.05, 715.23 and 233.42

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Solution

The fourth proportional to 477.05, 715.23 and 233.42 is: 349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.05 : 715.23 = 233.42 : x
  2. Step 2: Convert to fraction form
    477.05/715.23 = 233.42/x
  3. Step 3: Cross multiply
    477.05x = 715.23 × 233.42
  4. Step 4: Simplify right side
    477.05x = 166,945.41
  5. Step 5: Solve for x
    x = 166,945.41/477.05
  6. Step 6: Final answer
    x = 349.96

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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.