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Finding the Fourth Proportional to 230,346.59, 345,620.28 and 80,694.23

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Solution

The fourth proportional to 230,346.59, 345,620.28 and 80,694.23 is: 121,076.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,346.59 : 345,620.28 = 80,694.23 : x
  2. Step 2: Convert to fraction form
    230,346.59/345,620.28 = 80,694.23/x
  3. Step 3: Cross multiply
    230,346.59x = 345,620.28 × 80,694.23
  4. Step 4: Simplify right side
    230,346.59x = 27,889,562,366.98
  5. Step 5: Solve for x
    x = 27,889,562,366.98/230,346.59
  6. Step 6: Final answer
    x = 121,076.52

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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.