Home / 326,728.41-489,725.28-166,354.18

Finding the Fourth Proportional to 326,728.41, 489,725.28 and 166,354.18

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Solution

The fourth proportional to 326,728.41, 489,725.28 and 166,354.18 is: 249,344.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,728.41 : 489,725.28 = 166,354.18 : x
  2. Step 2: Convert to fraction form
    326,728.41/489,725.28 = 166,354.18/x
  3. Step 3: Cross multiply
    326,728.41x = 489,725.28 × 166,354.18
  4. Step 4: Simplify right side
    326,728.41x = 81,467,846,143.69
  5. Step 5: Solve for x
    x = 81,467,846,143.69/326,728.41
  6. Step 6: Final answer
    x = 249,344.24

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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.