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Finding the Fourth Proportional to 326,527.25, 489,602.31 and 126,614.09

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Solution

The fourth proportional to 326,527.25, 489,602.31 and 126,614.09 is: 189,848.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,527.25 : 489,602.31 = 126,614.09 : x
  2. Step 2: Convert to fraction form
    326,527.25/489,602.31 = 126,614.09/x
  3. Step 3: Cross multiply
    326,527.25x = 489,602.31 × 126,614.09
  4. Step 4: Simplify right side
    326,527.25x = 61,990,548,494.54
  5. Step 5: Solve for x
    x = 61,990,548,494.54/326,527.25
  6. Step 6: Final answer
    x = 189,848.01

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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.