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Finding the Fourth Proportional to 326,568.88, 489,884.28 and 126,904.69

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Solution

The fourth proportional to 326,568.88, 489,884.28 and 126,904.69 is: 190,369.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,568.88 : 489,884.28 = 126,904.69 : x
  2. Step 2: Convert to fraction form
    326,568.88/489,884.28 = 126,904.69/x
  3. Step 3: Cross multiply
    326,568.88x = 489,884.28 × 126,904.69
  4. Step 4: Simplify right side
    326,568.88x = 62,168,612,689.27
  5. Step 5: Solve for x
    x = 62,168,612,689.27/326,568.88
  6. Step 6: Final answer
    x = 190,369.07

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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.