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Finding the Fourth Proportional to 345.48, 515.36 and 335.34

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Solution

The fourth proportional to 345.48, 515.36 and 335.34 is: 500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.48 : 515.36 = 335.34 : x
  2. Step 2: Convert to fraction form
    345.48/515.36 = 335.34/x
  3. Step 3: Cross multiply
    345.48x = 515.36 × 335.34
  4. Step 4: Simplify right side
    345.48x = 172,819.15
  5. Step 5: Solve for x
    x = 172,819.15/345.48
  6. Step 6: Final answer
    x = 500.23

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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.