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Finding the Fourth Proportional to 528.00, 728.93 and 351.09

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Solution

The fourth proportional to 528.00, 728.93 and 351.09 is: 484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.00 : 728.93 = 351.09 : x
  2. Step 2: Convert to fraction form
    528.00/728.93 = 351.09/x
  3. Step 3: Cross multiply
    528.00x = 728.93 × 351.09
  4. Step 4: Simplify right side
    528.00x = 255,923.01
  5. Step 5: Solve for x
    x = 255,923.01/528.00
  6. Step 6: Final answer
    x = 484.70

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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.