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Finding the Fourth Proportional to 535.00, 737.78 and 325.21

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Solution

The fourth proportional to 535.00, 737.78 and 325.21 is: 448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.00 : 737.78 = 325.21 : x
  2. Step 2: Convert to fraction form
    535.00/737.78 = 325.21/x
  3. Step 3: Cross multiply
    535.00x = 737.78 × 325.21
  4. Step 4: Simplify right side
    535.00x = 239,929.96
  5. Step 5: Solve for x
    x = 239,929.96/535.00
  6. Step 6: Final answer
    x = 448.47

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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.