Home / 343,822.80-515,734.20-119,436.60

Finding the Fourth Proportional to 343,822.80, 515,734.20 and 119,436.60

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Solution

The fourth proportional to 343,822.80, 515,734.20 and 119,436.60 is: 179,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,822.80 : 515,734.20 = 119,436.60 : x
  2. Step 2: Convert to fraction form
    343,822.80/515,734.20 = 119,436.60/x
  3. Step 3: Cross multiply
    343,822.80x = 515,734.20 × 119,436.60
  4. Step 4: Simplify right side
    343,822.80x = 61,597,539,351.72
  5. Step 5: Solve for x
    x = 61,597,539,351.72/343,822.80
  6. Step 6: Final answer
    x = 179,154.90

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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.