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Finding the Fourth Proportional to 343,735.62, 515,403.60 and 230,013.39

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Solution

The fourth proportional to 343,735.62, 515,403.60 and 230,013.39 is: 344,886.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,735.62 : 515,403.60 = 230,013.39 : x
  2. Step 2: Convert to fraction form
    343,735.62/515,403.60 = 230,013.39/x
  3. Step 3: Cross multiply
    343,735.62x = 515,403.60 × 230,013.39
  4. Step 4: Simplify right side
    343,735.62x = 118,549,729,254.20
  5. Step 5: Solve for x
    x = 118,549,729,254.20/343,735.62
  6. Step 6: Final answer
    x = 344,886.37

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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.