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Finding the Fourth Proportional to 474.71, 654.91 and 297.56

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Solution

The fourth proportional to 474.71, 654.91 and 297.56 is: 410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.71 : 654.91 = 297.56 : x
  2. Step 2: Convert to fraction form
    474.71/654.91 = 297.56/x
  3. Step 3: Cross multiply
    474.71x = 654.91 × 297.56
  4. Step 4: Simplify right side
    474.71x = 194,875.91
  5. Step 5: Solve for x
    x = 194,875.91/474.71
  6. Step 6: Final answer
    x = 410.52

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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.