Home / 215,267.20-321,875.24-196,444.96

Finding the Fourth Proportional to 215,267.20, 321,875.24 and 196,444.96

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Solution

The fourth proportional to 215,267.20, 321,875.24 and 196,444.96 is: 293,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,267.20 : 321,875.24 = 196,444.96 : x
  2. Step 2: Convert to fraction form
    215,267.20/321,875.24 = 196,444.96/x
  3. Step 3: Cross multiply
    215,267.20x = 321,875.24 × 196,444.96
  4. Step 4: Simplify right side
    215,267.20x = 63,230,768,646.79
  5. Step 5: Solve for x
    x = 63,230,768,646.79/215,267.20
  6. Step 6: Final answer
    x = 293,731.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.