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Finding the Fourth Proportional to 452.33, 673.99 and 430.28

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Solution

The fourth proportional to 452.33, 673.99 and 430.28 is: 641.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.33 : 673.99 = 430.28 : x
  2. Step 2: Convert to fraction form
    452.33/673.99 = 430.28/x
  3. Step 3: Cross multiply
    452.33x = 673.99 × 430.28
  4. Step 4: Simplify right side
    452.33x = 290,004.42
  5. Step 5: Solve for x
    x = 290,004.42/452.33
  6. Step 6: Final answer
    x = 641.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.