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Finding the Fourth Proportional to 473.75, 654.99 and 453.35

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Solution

The fourth proportional to 473.75, 654.99 and 453.35 is: 626.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.75 : 654.99 = 453.35 : x
  2. Step 2: Convert to fraction form
    473.75/654.99 = 453.35/x
  3. Step 3: Cross multiply
    473.75x = 654.99 × 453.35
  4. Step 4: Simplify right side
    473.75x = 296,939.72
  5. Step 5: Solve for x
    x = 296,939.72/473.75
  6. Step 6: Final answer
    x = 626.79

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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.