Home / 240,175.88-331,443.03-138,199.31

Finding the Fourth Proportional to 240,175.88, 331,443.03 and 138,199.31

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Solution

The fourth proportional to 240,175.88, 331,443.03 and 138,199.31 is: 190,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,175.88 : 331,443.03 = 138,199.31 : x
  2. Step 2: Convert to fraction form
    240,175.88/331,443.03 = 138,199.31/x
  3. Step 3: Cross multiply
    240,175.88x = 331,443.03 × 138,199.31
  4. Step 4: Simplify right side
    240,175.88x = 45,805,196,393.09
  5. Step 5: Solve for x
    x = 45,805,196,393.09/240,175.88
  6. Step 6: Final answer
    x = 190,715.23

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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.