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Finding the Fourth Proportional to 230,385.88, 345,734.51 and 80,627.51

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Solution

The fourth proportional to 230,385.88, 345,734.51 and 80,627.51 is: 120,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,385.88 : 345,734.51 = 80,627.51 : x
  2. Step 2: Convert to fraction form
    230,385.88/345,734.51 = 80,627.51/x
  3. Step 3: Cross multiply
    230,385.88x = 345,734.51 × 80,627.51
  4. Step 4: Simplify right side
    230,385.88x = 27,875,711,632.34
  5. Step 5: Solve for x
    x = 27,875,711,632.34/230,385.88
  6. Step 6: Final answer
    x = 120,995.75

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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.