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Finding the Fourth Proportional to 340.14, 505.76 and 336.90

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Solution

The fourth proportional to 340.14, 505.76 and 336.90 is: 500.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.14 : 505.76 = 336.90 : x
  2. Step 2: Convert to fraction form
    340.14/505.76 = 336.90/x
  3. Step 3: Cross multiply
    340.14x = 505.76 × 336.90
  4. Step 4: Simplify right side
    340.14x = 170,388.86
  5. Step 5: Solve for x
    x = 170,388.86/340.14
  6. Step 6: Final answer
    x = 500.94

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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.