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Finding the Fourth Proportional to 326,555.92, 489,741.06 and 126,833.68

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Solution

The fourth proportional to 326,555.92, 489,741.06 and 126,833.68 is: 190,214.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,555.92 : 489,741.06 = 126,833.68 : x
  2. Step 2: Convert to fraction form
    326,555.92/489,741.06 = 126,833.68/x
  3. Step 3: Cross multiply
    326,555.92x = 489,741.06 × 126,833.68
  4. Step 4: Simplify right side
    326,555.92x = 62,115,660,886.90
  5. Step 5: Solve for x
    x = 62,115,660,886.90/326,555.92
  6. Step 6: Final answer
    x = 190,214.47

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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.