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Finding the Fourth Proportional to 345.40, 475.68 and 337.84

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Solution

The fourth proportional to 345.40, 475.68 and 337.84 is: 465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.40 : 475.68 = 337.84 : x
  2. Step 2: Convert to fraction form
    345.40/475.68 = 337.84/x
  3. Step 3: Cross multiply
    345.40x = 475.68 × 337.84
  4. Step 4: Simplify right side
    345.40x = 160,703.73
  5. Step 5: Solve for x
    x = 160,703.73/345.40
  6. Step 6: Final answer
    x = 465.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.