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Finding the Fourth Proportional to 254,512.80, 381,769.20 and 207,273.60

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Solution

The fourth proportional to 254,512.80, 381,769.20 and 207,273.60 is: 310,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,512.80 : 381,769.20 = 207,273.60 : x
  2. Step 2: Convert to fraction form
    254,512.80/381,769.20 = 207,273.60/x
  3. Step 3: Cross multiply
    254,512.80x = 381,769.20 × 207,273.60
  4. Step 4: Simplify right side
    254,512.80x = 79,130,676,453.12
  5. Step 5: Solve for x
    x = 79,130,676,453.12/254,512.80
  6. Step 6: Final answer
    x = 310,910.40

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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.