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Finding the Fourth Proportional to 338.33, 504.99 and 313.55

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Solution

The fourth proportional to 338.33, 504.99 and 313.55 is: 468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.33 : 504.99 = 313.55 : x
  2. Step 2: Convert to fraction form
    338.33/504.99 = 313.55/x
  3. Step 3: Cross multiply
    338.33x = 504.99 × 313.55
  4. Step 4: Simplify right side
    338.33x = 158,337.09
  5. Step 5: Solve for x
    x = 158,337.09/338.33
  6. Step 6: Final answer
    x = 468.00

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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.