Home / 240,139.58-331,462.38-138,237.02

Finding the Fourth Proportional to 240,139.58, 331,462.38 and 138,237.02

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Solution

The fourth proportional to 240,139.58, 331,462.38 and 138,237.02 is: 190,807.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,139.58 : 331,462.38 = 138,237.02 : x
  2. Step 2: Convert to fraction form
    240,139.58/331,462.38 = 138,237.02/x
  3. Step 3: Cross multiply
    240,139.58x = 331,462.38 × 138,237.02
  4. Step 4: Simplify right side
    240,139.58x = 45,820,369,996.00
  5. Step 5: Solve for x
    x = 45,820,369,996.00/240,139.58
  6. Step 6: Final answer
    x = 190,807.24

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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.