Home / 240,456.49-331,801.10-138,515.29

Finding the Fourth Proportional to 240,456.49, 331,801.10 and 138,515.29

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Solution

The fourth proportional to 240,456.49, 331,801.10 and 138,515.29 is: 191,134.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,456.49 : 331,801.10 = 138,515.29 : x
  2. Step 2: Convert to fraction form
    240,456.49/331,801.10 = 138,515.29/x
  3. Step 3: Cross multiply
    240,456.49x = 331,801.10 × 138,515.29
  4. Step 4: Simplify right side
    240,456.49x = 45,959,525,588.82
  5. Step 5: Solve for x
    x = 45,959,525,588.82/240,456.49
  6. Step 6: Final answer
    x = 191,134.48

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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.