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Finding the Fourth Proportional to 226,246.80, 339,370.20 and 85,987.20

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Solution

The fourth proportional to 226,246.80, 339,370.20 and 85,987.20 is: 128,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,246.80 : 339,370.20 = 85,987.20 : x
  2. Step 2: Convert to fraction form
    226,246.80/339,370.20 = 85,987.20/x
  3. Step 3: Cross multiply
    226,246.80x = 339,370.20 × 85,987.20
  4. Step 4: Simplify right side
    226,246.80x = 29,181,493,261.44
  5. Step 5: Solve for x
    x = 29,181,493,261.44/226,246.80
  6. Step 6: Final answer
    x = 128,980.80

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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.