Home / 251,971.43-347,720.58-138,794.18

Finding the Fourth Proportional to 251,971.43, 347,720.58 and 138,794.18

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Solution

The fourth proportional to 251,971.43, 347,720.58 and 138,794.18 is: 191,535.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,971.43 : 347,720.58 = 138,794.18 : x
  2. Step 2: Convert to fraction form
    251,971.43/347,720.58 = 138,794.18/x
  3. Step 3: Cross multiply
    251,971.43x = 347,720.58 × 138,794.18
  4. Step 4: Simplify right side
    251,971.43x = 48,261,591,031.62
  5. Step 5: Solve for x
    x = 48,261,591,031.62/251,971.43
  6. Step 6: Final answer
    x = 191,535.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.