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Finding the Fourth Proportional to 477.20, 715.73 and 233.66

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Solution

The fourth proportional to 477.20, 715.73 and 233.66 is: 350.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.20 : 715.73 = 233.66 : x
  2. Step 2: Convert to fraction form
    477.20/715.73 = 233.66/x
  3. Step 3: Cross multiply
    477.20x = 715.73 × 233.66
  4. Step 4: Simplify right side
    477.20x = 167,239.85
  5. Step 5: Solve for x
    x = 167,239.85/477.20
  6. Step 6: Final answer
    x = 350.46

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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.