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Finding the Fourth Proportional to 326,527.39, 489,698.34 and 126,805.15

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Solution

The fourth proportional to 326,527.39, 489,698.34 and 126,805.15 is: 190,171.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,527.39 : 489,698.34 = 126,805.15 : x
  2. Step 2: Convert to fraction form
    326,527.39/489,698.34 = 126,805.15/x
  3. Step 3: Cross multiply
    326,527.39x = 489,698.34 × 126,805.15
  4. Step 4: Simplify right side
    326,527.39x = 62,096,271,458.45
  5. Step 5: Solve for x
    x = 62,096,271,458.45/326,527.39
  6. Step 6: Final answer
    x = 190,171.71

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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.