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Finding the Fourth Proportional to 300,839.96, 415,200.60 and 173,512.76

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Solution

The fourth proportional to 300,839.96, 415,200.60 and 173,512.76 is: 239,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,839.96 : 415,200.60 = 173,512.76 : x
  2. Step 2: Convert to fraction form
    300,839.96/415,200.60 = 173,512.76/x
  3. Step 3: Cross multiply
    300,839.96x = 415,200.60 × 173,512.76
  4. Step 4: Simplify right side
    300,839.96x = 72,042,602,059.66
  5. Step 5: Solve for x
    x = 72,042,602,059.66/300,839.96
  6. Step 6: Final answer
    x = 239,471.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.