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Finding the Fourth Proportional to 472.27, 651.62 and 297.65

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Solution

The fourth proportional to 472.27, 651.62 and 297.65 is: 410.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.27 : 651.62 = 297.65 : x
  2. Step 2: Convert to fraction form
    472.27/651.62 = 297.65/x
  3. Step 3: Cross multiply
    472.27x = 651.62 × 297.65
  4. Step 4: Simplify right side
    472.27x = 193,954.69
  5. Step 5: Solve for x
    x = 193,954.69/472.27
  6. Step 6: Final answer
    x = 410.69

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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.