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Finding the Fourth Proportional to 528.51, 793.05 and 323.22

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Solution

The fourth proportional to 528.51, 793.05 and 323.22 is: 485.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.51 : 793.05 = 323.22 : x
  2. Step 2: Convert to fraction form
    528.51/793.05 = 323.22/x
  3. Step 3: Cross multiply
    528.51x = 793.05 × 323.22
  4. Step 4: Simplify right side
    528.51x = 256,329.62
  5. Step 5: Solve for x
    x = 256,329.62/528.51
  6. Step 6: Final answer
    x = 485.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.