Home / 343,740.20-515,999.10-265,202.60

Finding the Fourth Proportional to 343,740.20, 515,999.10 and 265,202.60

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Solution

The fourth proportional to 343,740.20, 515,999.10 and 265,202.60 is: 398,103.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,740.20 : 515,999.10 = 265,202.60 : x
  2. Step 2: Convert to fraction form
    343,740.20/515,999.10 = 265,202.60/x
  3. Step 3: Cross multiply
    343,740.20x = 515,999.10 × 265,202.60
  4. Step 4: Simplify right side
    343,740.20x = 136,844,302,917.66
  5. Step 5: Solve for x
    x = 136,844,302,917.66/343,740.20
  6. Step 6: Final answer
    x = 398,103.87

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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.