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Finding the Fourth Proportional to 219,893.94, 329,873.31 and 79,619.76

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Solution

The fourth proportional to 219,893.94, 329,873.31 and 79,619.76 is: 119,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,893.94 : 329,873.31 = 79,619.76 : x
  2. Step 2: Convert to fraction form
    219,893.94/329,873.31 = 79,619.76/x
  3. Step 3: Cross multiply
    219,893.94x = 329,873.31 × 79,619.76
  4. Step 4: Simplify right side
    219,893.94x = 26,264,433,772.61
  5. Step 5: Solve for x
    x = 26,264,433,772.61/219,893.94
  6. Step 6: Final answer
    x = 119,441.37

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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.