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Finding the Fourth Proportional to 227,550.78, 313,662.51 and 155,806.74

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Solution

The fourth proportional to 227,550.78, 313,662.51 and 155,806.74 is: 214,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,550.78 : 313,662.51 = 155,806.74 : x
  2. Step 2: Convert to fraction form
    227,550.78/313,662.51 = 155,806.74/x
  3. Step 3: Cross multiply
    227,550.78x = 313,662.51 × 155,806.74
  4. Step 4: Simplify right side
    227,550.78x = 48,870,733,143.32
  5. Step 5: Solve for x
    x = 48,870,733,143.32/227,550.78
  6. Step 6: Final answer
    x = 214,768.47

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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.