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Finding the Fourth Proportional to 283,808.39, 391,248.54 and 223,273.85

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Solution

The fourth proportional to 283,808.39, 391,248.54 and 223,273.85 is: 307,797.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,808.39 : 391,248.54 = 223,273.85 : x
  2. Step 2: Convert to fraction form
    283,808.39/391,248.54 = 223,273.85/x
  3. Step 3: Cross multiply
    283,808.39x = 391,248.54 × 223,273.85
  4. Step 4: Simplify right side
    283,808.39x = 87,355,565,876.44
  5. Step 5: Solve for x
    x = 87,355,565,876.44/283,808.39
  6. Step 6: Final answer
    x = 307,797.69

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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.