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Finding the Fourth Proportional to 353.92, 526.93 and 348.79

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Solution

The fourth proportional to 353.92, 526.93 and 348.79 is: 519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.92 : 526.93 = 348.79 : x
  2. Step 2: Convert to fraction form
    353.92/526.93 = 348.79/x
  3. Step 3: Cross multiply
    353.92x = 526.93 × 348.79
  4. Step 4: Simplify right side
    353.92x = 183,789.92
  5. Step 5: Solve for x
    x = 183,789.92/353.92
  6. Step 6: Final answer
    x = 519.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.