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Finding the Fourth Proportional to 274,183.92, 378,370.71 and 153,323.55

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Solution

The fourth proportional to 274,183.92, 378,370.71 and 153,323.55 is: 211,584.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,183.92 : 378,370.71 = 153,323.55 : x
  2. Step 2: Convert to fraction form
    274,183.92/378,370.71 = 153,323.55/x
  3. Step 3: Cross multiply
    274,183.92x = 378,370.71 × 153,323.55
  4. Step 4: Simplify right side
    274,183.92x = 58,013,140,473.22
  5. Step 5: Solve for x
    x = 58,013,140,473.22/274,183.92
  6. Step 6: Final answer
    x = 211,584.77

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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.