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Finding the Fourth Proportional to 303,628.92, 418,976.10 and 176,279.64

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Solution

The fourth proportional to 303,628.92, 418,976.10 and 176,279.64 is: 243,247.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,628.92 : 418,976.10 = 176,279.64 : x
  2. Step 2: Convert to fraction form
    303,628.92/418,976.10 = 176,279.64/x
  3. Step 3: Cross multiply
    303,628.92x = 418,976.10 × 176,279.64
  4. Step 4: Simplify right side
    303,628.92x = 73,856,956,076.60
  5. Step 5: Solve for x
    x = 73,856,956,076.60/303,628.92
  6. Step 6: Final answer
    x = 243,247.44

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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.