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Finding the Fourth Proportional to 322,722.72, 445,351.02 and 179,479.70

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Solution

The fourth proportional to 322,722.72, 445,351.02 and 179,479.70 is: 247,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,722.72 : 445,351.02 = 179,479.70 : x
  2. Step 2: Convert to fraction form
    322,722.72/445,351.02 = 179,479.70/x
  3. Step 3: Cross multiply
    322,722.72x = 445,351.02 × 179,479.70
  4. Step 4: Simplify right side
    322,722.72x = 79,931,467,464.29
  5. Step 5: Solve for x
    x = 79,931,467,464.29/322,722.72
  6. Step 6: Final answer
    x = 247,678.46

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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.