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Finding the Fourth Proportional to 277,738.56, 416,629.44 and 90,768.96

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Solution

The fourth proportional to 277,738.56, 416,629.44 and 90,768.96 is: 136,160.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,738.56 : 416,629.44 = 90,768.96 : x
  2. Step 2: Convert to fraction form
    277,738.56/416,629.44 = 90,768.96/x
  3. Step 3: Cross multiply
    277,738.56x = 416,629.44 × 90,768.96
  4. Step 4: Simplify right side
    277,738.56x = 37,817,020,974.18
  5. Step 5: Solve for x
    x = 37,817,020,974.18/277,738.56
  6. Step 6: Final answer
    x = 136,160.50

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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.