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Finding the Fourth Proportional to 326,609.55, 489,914.37 and 101,989.22

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Solution

The fourth proportional to 326,609.55, 489,914.37 and 101,989.22 is: 152,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,609.55 : 489,914.37 = 101,989.22 : x
  2. Step 2: Convert to fraction form
    326,609.55/489,914.37 = 101,989.22/x
  3. Step 3: Cross multiply
    326,609.55x = 489,914.37 × 101,989.22
  4. Step 4: Simplify right side
    326,609.55x = 49,965,982,013.52
  5. Step 5: Solve for x
    x = 49,965,982,013.52/326,609.55
  6. Step 6: Final answer
    x = 152,983.84

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1.5x scale

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.