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Finding the Fourth Proportional to 351.68, 526.96 and 264.91

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Solution

The fourth proportional to 351.68, 526.96 and 264.91 is: 396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.68 : 526.96 = 264.91 : x
  2. Step 2: Convert to fraction form
    351.68/526.96 = 264.91/x
  3. Step 3: Cross multiply
    351.68x = 526.96 × 264.91
  4. Step 4: Simplify right side
    351.68x = 139,599.20
  5. Step 5: Solve for x
    x = 139,599.20/351.68
  6. Step 6: Final answer
    x = 396.96

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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.