Home / 205,121.40-307,682.10-170,100.60

Finding the Fourth Proportional to 205,121.40, 307,682.10 and 170,100.60

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Solution

The fourth proportional to 205,121.40, 307,682.10 and 170,100.60 is: 255,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,121.40 : 307,682.10 = 170,100.60 : x
  2. Step 2: Convert to fraction form
    205,121.40/307,682.10 = 170,100.60/x
  3. Step 3: Cross multiply
    205,121.40x = 307,682.10 × 170,100.60
  4. Step 4: Simplify right side
    205,121.40x = 52,336,909,819.26
  5. Step 5: Solve for x
    x = 52,336,909,819.26/205,121.40
  6. Step 6: Final answer
    x = 255,150.90

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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.