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Finding the Fourth Proportional to 526.35, 791.88 and 321.09

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Solution

The fourth proportional to 526.35, 791.88 and 321.09 is: 483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.35 : 791.88 = 321.09 : x
  2. Step 2: Convert to fraction form
    526.35/791.88 = 321.09/x
  3. Step 3: Cross multiply
    526.35x = 791.88 × 321.09
  4. Step 4: Simplify right side
    526.35x = 254,260.58
  5. Step 5: Solve for x
    x = 254,260.58/526.35
  6. Step 6: Final answer
    x = 483.06

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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.