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Finding the Fourth Proportional to 605.83, 908.16 and 328.28

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Solution

The fourth proportional to 605.83, 908.16 and 328.28 is: 492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.83 : 908.16 = 328.28 : x
  2. Step 2: Convert to fraction form
    605.83/908.16 = 328.28/x
  3. Step 3: Cross multiply
    605.83x = 908.16 × 328.28
  4. Step 4: Simplify right side
    605.83x = 298,129.39
  5. Step 5: Solve for x
    x = 298,129.39/605.83
  6. Step 6: Final answer
    x = 492.10

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1.5x scale

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.