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Finding the Fourth Proportional to 453.28, 624.73 and 374.13

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Solution

The fourth proportional to 453.28, 624.73 and 374.13 is: 515.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.28 : 624.73 = 374.13 : x
  2. Step 2: Convert to fraction form
    453.28/624.73 = 374.13/x
  3. Step 3: Cross multiply
    453.28x = 624.73 × 374.13
  4. Step 4: Simplify right side
    453.28x = 233,725.24
  5. Step 5: Solve for x
    x = 233,725.24/453.28
  6. Step 6: Final answer
    x = 515.64

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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.