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Finding the Fourth Proportional to 322,588.40, 445,146.70 and 179,339.72

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Solution

The fourth proportional to 322,588.40, 445,146.70 and 179,339.72 is: 247,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,588.40 : 445,146.70 = 179,339.72 : x
  2. Step 2: Convert to fraction form
    322,588.40/445,146.70 = 179,339.72/x
  3. Step 3: Cross multiply
    322,588.40x = 445,146.70 × 179,339.72
  4. Step 4: Simplify right side
    322,588.40x = 79,832,484,536.92
  5. Step 5: Solve for x
    x = 79,832,484,536.92/322,588.40
  6. Step 6: Final answer
    x = 247,474.75

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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.