Home / 320,865.13-442,910.51-186,729.13

Finding the Fourth Proportional to 320,865.13, 442,910.51 and 186,729.13

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Solution

The fourth proportional to 320,865.13, 442,910.51 and 186,729.13 is: 257,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,865.13 : 442,910.51 = 186,729.13 : x
  2. Step 2: Convert to fraction form
    320,865.13/442,910.51 = 186,729.13/x
  3. Step 3: Cross multiply
    320,865.13x = 442,910.51 × 186,729.13
  4. Step 4: Simplify right side
    320,865.13x = 82,704,294,200.16
  5. Step 5: Solve for x
    x = 82,704,294,200.16/320,865.13
  6. Step 6: Final answer
    x = 257,754.07

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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.