Home / 240,453.36-331,796.79-138,512.16

Finding the Fourth Proportional to 240,453.36, 331,796.79 and 138,512.16

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Solution

The fourth proportional to 240,453.36, 331,796.79 and 138,512.16 is: 191,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,453.36 : 331,796.79 = 138,512.16 : x
  2. Step 2: Convert to fraction form
    240,453.36/331,796.79 = 138,512.16/x
  3. Step 3: Cross multiply
    240,453.36x = 331,796.79 × 138,512.16
  4. Step 4: Simplify right side
    240,453.36x = 45,957,890,063.97
  5. Step 5: Solve for x
    x = 45,957,890,063.97/240,453.36
  6. Step 6: Final answer
    x = 191,130.16

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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.