Home / 209,260.20-313,890.30-69,000.60

Finding the Fourth Proportional to 209,260.20, 313,890.30 and 69,000.60

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Solution

The fourth proportional to 209,260.20, 313,890.30 and 69,000.60 is: 103,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,260.20 : 313,890.30 = 69,000.60 : x
  2. Step 2: Convert to fraction form
    209,260.20/313,890.30 = 69,000.60/x
  3. Step 3: Cross multiply
    209,260.20x = 313,890.30 × 69,000.60
  4. Step 4: Simplify right side
    209,260.20x = 21,658,619,034.18
  5. Step 5: Solve for x
    x = 21,658,619,034.18/209,260.20
  6. Step 6: Final answer
    x = 103,500.90

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1.5x scale

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.