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Finding the Fourth Proportional to 336.89, 464.23 and 258.21

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Solution

The fourth proportional to 336.89, 464.23 and 258.21 is: 355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.89 : 464.23 = 258.21 : x
  2. Step 2: Convert to fraction form
    336.89/464.23 = 258.21/x
  3. Step 3: Cross multiply
    336.89x = 464.23 × 258.21
  4. Step 4: Simplify right side
    336.89x = 119,865.22
  5. Step 5: Solve for x
    x = 119,865.22/336.89
  6. Step 6: Final answer
    x = 355.80

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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.