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Finding the Fourth Proportional to 351.03, 526.68 and 281.37

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Solution

The fourth proportional to 351.03, 526.68 and 281.37 is: 422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.03 : 526.68 = 281.37 : x
  2. Step 2: Convert to fraction form
    351.03/526.68 = 281.37/x
  3. Step 3: Cross multiply
    351.03x = 526.68 × 281.37
  4. Step 4: Simplify right side
    351.03x = 148,191.95
  5. Step 5: Solve for x
    x = 148,191.95/351.03
  6. Step 6: Final answer
    x = 422.16

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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.