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Finding the Fourth Proportional to 474.14, 654.64 and 297.18

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Solution

The fourth proportional to 474.14, 654.64 and 297.18 is: 410.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.14 : 654.64 = 297.18 : x
  2. Step 2: Convert to fraction form
    474.14/654.64 = 297.18/x
  3. Step 3: Cross multiply
    474.14x = 654.64 × 297.18
  4. Step 4: Simplify right side
    474.14x = 194,545.92
  5. Step 5: Solve for x
    x = 194,545.92/474.14
  6. Step 6: Final answer
    x = 410.31

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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.