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Finding the Fourth Proportional to 452.00, 624.21 and 386.12

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Solution

The fourth proportional to 452.00, 624.21 and 386.12 is: 533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.00 : 624.21 = 386.12 : x
  2. Step 2: Convert to fraction form
    452.00/624.21 = 386.12/x
  3. Step 3: Cross multiply
    452.00x = 624.21 × 386.12
  4. Step 4: Simplify right side
    452.00x = 241,020.08
  5. Step 5: Solve for x
    x = 241,020.08/452.00
  6. Step 6: Final answer
    x = 533.23

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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.