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Finding the Fourth Proportional to 254,272.72, 381,260.76 and 76,726.48

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Solution

The fourth proportional to 254,272.72, 381,260.76 and 76,726.48 is: 115,044.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,272.72 : 381,260.76 = 76,726.48 : x
  2. Step 2: Convert to fraction form
    254,272.72/381,260.76 = 76,726.48/x
  3. Step 3: Cross multiply
    254,272.72x = 381,260.76 × 76,726.48
  4. Step 4: Simplify right side
    254,272.72x = 29,252,796,076.92
  5. Step 5: Solve for x
    x = 29,252,796,076.92/254,272.72
  6. Step 6: Final answer
    x = 115,044.96

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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.