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Finding the Fourth Proportional to 366.96, 504.99 and 317.55

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Solution

The fourth proportional to 366.96, 504.99 and 317.55 is: 436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.96 : 504.99 = 317.55 : x
  2. Step 2: Convert to fraction form
    366.96/504.99 = 317.55/x
  3. Step 3: Cross multiply
    366.96x = 504.99 × 317.55
  4. Step 4: Simplify right side
    366.96x = 160,359.57
  5. Step 5: Solve for x
    x = 160,359.57/366.96
  6. Step 6: Final answer
    x = 436.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.