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Finding the Fourth Proportional to 529.47, 794.48 and 221.54

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Solution

The fourth proportional to 529.47, 794.48 and 221.54 is: 332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.47 : 794.48 = 221.54 : x
  2. Step 2: Convert to fraction form
    529.47/794.48 = 221.54/x
  3. Step 3: Cross multiply
    529.47x = 794.48 × 221.54
  4. Step 4: Simplify right side
    529.47x = 176,004.02
  5. Step 5: Solve for x
    x = 176,004.02/529.47
  6. Step 6: Final answer
    x = 332.42

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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.