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Finding the Fourth Proportional to 529.19, 793.33 and 255.47

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Solution

The fourth proportional to 529.19, 793.33 and 255.47 is: 382.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.19 : 793.33 = 255.47 : x
  2. Step 2: Convert to fraction form
    529.19/793.33 = 255.47/x
  3. Step 3: Cross multiply
    529.19x = 793.33 × 255.47
  4. Step 4: Simplify right side
    529.19x = 202,673.84
  5. Step 5: Solve for x
    x = 202,673.84/529.19
  6. Step 6: Final answer
    x = 382.99

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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.