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Finding the Fourth Proportional to 351.08, 526.47 and 269.98

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Solution

The fourth proportional to 351.08, 526.47 and 269.98 is: 404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.08 : 526.47 = 269.98 : x
  2. Step 2: Convert to fraction form
    351.08/526.47 = 269.98/x
  3. Step 3: Cross multiply
    351.08x = 526.47 × 269.98
  4. Step 4: Simplify right side
    351.08x = 142,136.37
  5. Step 5: Solve for x
    x = 142,136.37/351.08
  6. Step 6: Final answer
    x = 404.85

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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.