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Finding the Fourth Proportional to 326,022.83, 488,992.65 and 126,206.49

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Solution

The fourth proportional to 326,022.83, 488,992.65 and 126,206.49 is: 189,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,022.83 : 488,992.65 = 126,206.49 : x
  2. Step 2: Convert to fraction form
    326,022.83/488,992.65 = 126,206.49/x
  3. Step 3: Cross multiply
    326,022.83x = 488,992.65 × 126,206.49
  4. Step 4: Simplify right side
    326,022.83x = 61,714,045,992.30
  5. Step 5: Solve for x
    x = 61,714,045,992.30/326,022.83
  6. Step 6: Final answer
    x = 189,293.64

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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.