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Finding the Fourth Proportional to 219,628.32, 329,447.88 and 61,855.71

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Solution

The fourth proportional to 219,628.32, 329,447.88 and 61,855.71 is: 92,785.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,628.32 : 329,447.88 = 61,855.71 : x
  2. Step 2: Convert to fraction form
    219,628.32/329,447.88 = 61,855.71/x
  3. Step 3: Cross multiply
    219,628.32x = 329,447.88 × 61,855.71
  4. Step 4: Simplify right side
    219,628.32x = 20,378,232,525.39
  5. Step 5: Solve for x
    x = 20,378,232,525.39/219,628.32
  6. Step 6: Final answer
    x = 92,785.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.