Home / 240,427.13-331,814.16-138,456.44

Finding the Fourth Proportional to 240,427.13, 331,814.16 and 138,456.44

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Solution

The fourth proportional to 240,427.13, 331,814.16 and 138,456.44 is: 191,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,427.13 : 331,814.16 = 138,456.44 : x
  2. Step 2: Convert to fraction form
    240,427.13/331,814.16 = 138,456.44/x
  3. Step 3: Cross multiply
    240,427.13x = 331,814.16 × 138,456.44
  4. Step 4: Simplify right side
    240,427.13x = 45,941,804,983.84
  5. Step 5: Solve for x
    x = 45,941,804,983.84/240,427.13
  6. Step 6: Final answer
    x = 191,084.11

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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.