Home / 339,740.20-509,264.70-199,426.60

Finding the Fourth Proportional to 339,740.20, 509,264.70 and 199,426.60

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Solution

The fourth proportional to 339,740.20, 509,264.70 and 199,426.60 is: 298,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,740.20 : 509,264.70 = 199,426.60 : x
  2. Step 2: Convert to fraction form
    339,740.20/509,264.70 = 199,426.60/x
  3. Step 3: Cross multiply
    339,740.20x = 509,264.70 × 199,426.60
  4. Step 4: Simplify right side
    339,740.20x = 101,560,927,621.02
  5. Step 5: Solve for x
    x = 101,560,927,621.02/339,740.20
  6. Step 6: Final answer
    x = 298,937.03

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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.