Home / 326,411.56-489,768.20-148,972.96

Finding the Fourth Proportional to 326,411.56, 489,768.20 and 148,972.96

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Solution

The fourth proportional to 326,411.56, 489,768.20 and 148,972.96 is: 223,528.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,411.56 : 489,768.20 = 148,972.96 : x
  2. Step 2: Convert to fraction form
    326,411.56/489,768.20 = 148,972.96/x
  3. Step 3: Cross multiply
    326,411.56x = 489,768.20 × 148,972.96
  4. Step 4: Simplify right side
    326,411.56x = 72,962,218,467.87
  5. Step 5: Solve for x
    x = 72,962,218,467.87/326,411.56
  6. Step 6: Final answer
    x = 223,528.29

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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.