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Finding the Fourth Proportional to 343,560.39, 515,091.42 and 230,961.30

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Solution

The fourth proportional to 343,560.39, 515,091.42 and 230,961.30 is: 346,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,560.39 : 515,091.42 = 230,961.30 : x
  2. Step 2: Convert to fraction form
    343,560.39/515,091.42 = 230,961.30/x
  3. Step 3: Cross multiply
    343,560.39x = 515,091.42 × 230,961.30
  4. Step 4: Simplify right side
    343,560.39x = 118,966,183,982.05
  5. Step 5: Solve for x
    x = 118,966,183,982.05/343,560.39
  6. Step 6: Final answer
    x = 346,274.45

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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.