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Finding the Fourth Proportional to 349.15, 521.07 and 335.02

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Solution

The fourth proportional to 349.15, 521.07 and 335.02 is: 499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.15 : 521.07 = 335.02 : x
  2. Step 2: Convert to fraction form
    349.15/521.07 = 335.02/x
  3. Step 3: Cross multiply
    349.15x = 521.07 × 335.02
  4. Step 4: Simplify right side
    349.15x = 174,567.57
  5. Step 5: Solve for x
    x = 174,567.57/349.15
  6. Step 6: Final answer
    x = 499.98

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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.