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Finding the Fourth Proportional to 345.84, 515.44 and 335.86

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Solution

The fourth proportional to 345.84, 515.44 and 335.86 is: 500.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.84 : 515.44 = 335.86 : x
  2. Step 2: Convert to fraction form
    345.84/515.44 = 335.86/x
  3. Step 3: Cross multiply
    345.84x = 515.44 × 335.86
  4. Step 4: Simplify right side
    345.84x = 173,115.68
  5. Step 5: Solve for x
    x = 173,115.68/345.84
  6. Step 6: Final answer
    x = 500.57

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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.