Home / 252,002.80-378,004.20-207,679.60

Finding the Fourth Proportional to 252,002.80, 378,004.20 and 207,679.60

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Solution

The fourth proportional to 252,002.80, 378,004.20 and 207,679.60 is: 311,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,002.80 : 378,004.20 = 207,679.60 : x
  2. Step 2: Convert to fraction form
    252,002.80/378,004.20 = 207,679.60/x
  3. Step 3: Cross multiply
    252,002.80x = 378,004.20 × 207,679.60
  4. Step 4: Simplify right side
    252,002.80x = 78,503,761,054.32
  5. Step 5: Solve for x
    x = 78,503,761,054.32/252,002.80
  6. Step 6: Final answer
    x = 311,519.40

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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.