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Finding the Fourth Proportional to 529.90, 795.14 and 205.28

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Solution

The fourth proportional to 529.90, 795.14 and 205.28 is: 308.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.90 : 795.14 = 205.28 : x
  2. Step 2: Convert to fraction form
    529.90/795.14 = 205.28/x
  3. Step 3: Cross multiply
    529.90x = 795.14 × 205.28
  4. Step 4: Simplify right side
    529.90x = 163,226.34
  5. Step 5: Solve for x
    x = 163,226.34/529.90
  6. Step 6: Final answer
    x = 308.03

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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.