Home / 215,725.44-321,900.48-193,310.56

Finding the Fourth Proportional to 215,725.44, 321,900.48 and 193,310.56

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Solution

The fourth proportional to 215,725.44, 321,900.48 and 193,310.56 is: 288,453.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,725.44 : 321,900.48 = 193,310.56 : x
  2. Step 2: Convert to fraction form
    215,725.44/321,900.48 = 193,310.56/x
  3. Step 3: Cross multiply
    215,725.44x = 321,900.48 × 193,310.56
  4. Step 4: Simplify right side
    215,725.44x = 62,226,762,053.07
  5. Step 5: Solve for x
    x = 62,226,762,053.07/215,725.44
  6. Step 6: Final answer
    x = 288,453.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.