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Finding the Fourth Proportional to 537.45, 806.17 and 354.80

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Solution

The fourth proportional to 537.45, 806.17 and 354.80 is: 532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.45 : 806.17 = 354.80 : x
  2. Step 2: Convert to fraction form
    537.45/806.17 = 354.80/x
  3. Step 3: Cross multiply
    537.45x = 806.17 × 354.80
  4. Step 4: Simplify right side
    537.45x = 286,030.71
  5. Step 5: Solve for x
    x = 286,030.71/537.45
  6. Step 6: Final answer
    x = 532.20

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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.