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Finding the Fourth Proportional to 545.15, 819.03 and 350.52

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Solution

The fourth proportional to 545.15, 819.03 and 350.52 is: 526.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.15 : 819.03 = 350.52 : x
  2. Step 2: Convert to fraction form
    545.15/819.03 = 350.52/x
  3. Step 3: Cross multiply
    545.15x = 819.03 × 350.52
  4. Step 4: Simplify right side
    545.15x = 287,086.40
  5. Step 5: Solve for x
    x = 287,086.40/545.15
  6. Step 6: Final answer
    x = 526.62

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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.