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Finding the Fourth Proportional to 654.48, 903.14 and 374.70

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Solution

The fourth proportional to 654.48, 903.14 and 374.70 is: 517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.48 : 903.14 = 374.70 : x
  2. Step 2: Convert to fraction form
    654.48/903.14 = 374.70/x
  3. Step 3: Cross multiply
    654.48x = 903.14 × 374.70
  4. Step 4: Simplify right side
    654.48x = 338,404.68
  5. Step 5: Solve for x
    x = 338,404.68/654.48
  6. Step 6: Final answer
    x = 517.06

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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.