Home / 297,738.56-446,356.78-129,131.90

Finding the Fourth Proportional to 297,738.56, 446,356.78 and 129,131.90

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Solution

The fourth proportional to 297,738.56, 446,356.78 and 129,131.90 is: 193,588.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,738.56 : 446,356.78 = 129,131.90 : x
  2. Step 2: Convert to fraction form
    297,738.56/446,356.78 = 129,131.90/x
  3. Step 3: Cross multiply
    297,738.56x = 446,356.78 × 129,131.90
  4. Step 4: Simplify right side
    297,738.56x = 57,638,899,079.28
  5. Step 5: Solve for x
    x = 57,638,899,079.28/297,738.56
  6. Step 6: Final answer
    x = 193,588.96

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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.