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Finding the Fourth Proportional to 221,310.80, 331,447.80 and 150,808.40

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Solution

The fourth proportional to 221,310.80, 331,447.80 and 150,808.40 is: 225,859.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,310.80 : 331,447.80 = 150,808.40 : x
  2. Step 2: Convert to fraction form
    221,310.80/331,447.80 = 150,808.40/x
  3. Step 3: Cross multiply
    221,310.80x = 331,447.80 × 150,808.40
  4. Step 4: Simplify right side
    221,310.80x = 49,985,112,401.52
  5. Step 5: Solve for x
    x = 49,985,112,401.52/221,310.80
  6. Step 6: Final answer
    x = 225,859.35

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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.