Home / 221,346.40-331,501.20-168,469.60

Finding the Fourth Proportional to 221,346.40, 331,501.20 and 168,469.60

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Solution

The fourth proportional to 221,346.40, 331,501.20 and 168,469.60 is: 252,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,346.40 : 331,501.20 = 168,469.60 : x
  2. Step 2: Convert to fraction form
    221,346.40/331,501.20 = 168,469.60/x
  3. Step 3: Cross multiply
    221,346.40x = 331,501.20 × 168,469.60
  4. Step 4: Simplify right side
    221,346.40x = 55,847,874,563.52
  5. Step 5: Solve for x
    x = 55,847,874,563.52/221,346.40
  6. Step 6: Final answer
    x = 252,309.84

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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.