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Finding the Fourth Proportional to 345.40, 519.01 and 336.74

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Solution

The fourth proportional to 345.40, 519.01 and 336.74 is: 506.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.40 : 519.01 = 336.74 : x
  2. Step 2: Convert to fraction form
    345.40/519.01 = 336.74/x
  3. Step 3: Cross multiply
    345.40x = 519.01 × 336.74
  4. Step 4: Simplify right side
    345.40x = 174,771.43
  5. Step 5: Solve for x
    x = 174,771.43/345.40
  6. Step 6: Final answer
    x = 506.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.