Home / 215,920.96-323,217.11-140,879.52

Finding the Fourth Proportional to 215,920.96, 323,217.11 and 140,879.52

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Solution

The fourth proportional to 215,920.96, 323,217.11 and 140,879.52 is: 210,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,920.96 : 323,217.11 = 140,879.52 : x
  2. Step 2: Convert to fraction form
    215,920.96/323,217.11 = 140,879.52/x
  3. Step 3: Cross multiply
    215,920.96x = 323,217.11 × 140,879.52
  4. Step 4: Simplify right side
    215,920.96x = 45,534,671,664.79
  5. Step 5: Solve for x
    x = 45,534,671,664.79/215,920.96
  6. Step 6: Final answer
    x = 210,885.84

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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.