Home / 329,811.10-494,911.05-217,815.10

Finding the Fourth Proportional to 329,811.10, 494,911.05 and 217,815.10

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Solution

The fourth proportional to 329,811.10, 494,911.05 and 217,815.10 is: 326,851.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,811.10 : 494,911.05 = 217,815.10 : x
  2. Step 2: Convert to fraction form
    329,811.10/494,911.05 = 217,815.10/x
  3. Step 3: Cross multiply
    329,811.10x = 494,911.05 × 217,815.10
  4. Step 4: Simplify right side
    329,811.10x = 107,799,099,846.86
  5. Step 5: Solve for x
    x = 107,799,099,846.86/329,811.10
  6. Step 6: Final answer
    x = 326,851.04

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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.