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Finding the Fourth Proportional to 349.94, 520.79 and 336.98

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Solution

The fourth proportional to 349.94, 520.79 and 336.98 is: 501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.94 : 520.79 = 336.98 : x
  2. Step 2: Convert to fraction form
    349.94/520.79 = 336.98/x
  3. Step 3: Cross multiply
    349.94x = 520.79 × 336.98
  4. Step 4: Simplify right side
    349.94x = 175,495.81
  5. Step 5: Solve for x
    x = 175,495.81/349.94
  6. Step 6: Final answer
    x = 501.50

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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.