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Finding the Fourth Proportional to 351.91, 526.65 and 229.87

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Solution

The fourth proportional to 351.91, 526.65 and 229.87 is: 344.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.91 : 526.65 = 229.87 : x
  2. Step 2: Convert to fraction form
    351.91/526.65 = 229.87/x
  3. Step 3: Cross multiply
    351.91x = 526.65 × 229.87
  4. Step 4: Simplify right side
    351.91x = 121,061.04
  5. Step 5: Solve for x
    x = 121,061.04/351.91
  6. Step 6: Final answer
    x = 344.01

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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.