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Finding the Fourth Proportional to 336.45, 464.36 and 314.49

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Solution

The fourth proportional to 336.45, 464.36 and 314.49 is: 434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.45 : 464.36 = 314.49 : x
  2. Step 2: Convert to fraction form
    336.45/464.36 = 314.49/x
  3. Step 3: Cross multiply
    336.45x = 464.36 × 314.49
  4. Step 4: Simplify right side
    336.45x = 146,035.00
  5. Step 5: Solve for x
    x = 146,035.00/336.45
  6. Step 6: Final answer
    x = 434.05

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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.