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Finding the Fourth Proportional to 254,401.06, 381,684.51 and 127,976.06

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Solution

The fourth proportional to 254,401.06, 381,684.51 and 127,976.06 is: 192,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,401.06 : 381,684.51 = 127,976.06 : x
  2. Step 2: Convert to fraction form
    254,401.06/381,684.51 = 127,976.06/x
  3. Step 3: Cross multiply
    254,401.06x = 381,684.51 × 127,976.06
  4. Step 4: Simplify right side
    254,401.06x = 48,846,479,752.83
  5. Step 5: Solve for x
    x = 48,846,479,752.83/254,401.06
  6. Step 6: Final answer
    x = 192,005.80

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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.