Home / 229,969.20-345,011.22-80,211.64

Finding the Fourth Proportional to 229,969.20, 345,011.22 and 80,211.64

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Solution

The fourth proportional to 229,969.20, 345,011.22 and 80,211.64 is: 120,337.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,969.20 : 345,011.22 = 80,211.64 : x
  2. Step 2: Convert to fraction form
    229,969.20/345,011.22 = 80,211.64/x
  3. Step 3: Cross multiply
    229,969.20x = 345,011.22 × 80,211.64
  4. Step 4: Simplify right side
    229,969.20x = 27,673,915,774.60
  5. Step 5: Solve for x
    x = 27,673,915,774.60/229,969.20
  6. Step 6: Final answer
    x = 120,337.49

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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.