Home / 320,865.52-442,911.22-186,729.52

Finding the Fourth Proportional to 320,865.52, 442,911.22 and 186,729.52

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Solution

The fourth proportional to 320,865.52, 442,911.22 and 186,729.52 is: 257,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,865.52 : 442,911.22 = 186,729.52 : x
  2. Step 2: Convert to fraction form
    320,865.52/442,911.22 = 186,729.52/x
  3. Step 3: Cross multiply
    320,865.52x = 442,911.22 × 186,729.52
  4. Step 4: Simplify right side
    320,865.52x = 82,704,599,513.21
  5. Step 5: Solve for x
    x = 82,704,599,513.21/320,865.52
  6. Step 6: Final answer
    x = 257,754.71

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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.