Home / 231,987.17-320,299.20-144,905.39

Finding the Fourth Proportional to 231,987.17, 320,299.20 and 144,905.39

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Solution

The fourth proportional to 231,987.17, 320,299.20 and 144,905.39 is: 200,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,987.17 : 320,299.20 = 144,905.39 : x
  2. Step 2: Convert to fraction form
    231,987.17/320,299.20 = 144,905.39/x
  3. Step 3: Cross multiply
    231,987.17x = 320,299.20 × 144,905.39
  4. Step 4: Simplify right side
    231,987.17x = 46,413,080,492.69
  5. Step 5: Solve for x
    x = 46,413,080,492.69/231,987.17
  6. Step 6: Final answer
    x = 200,067.45

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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.