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Finding the Fourth Proportional to 219,674.52, 329,511.78 and 79,400.34

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Solution

The fourth proportional to 219,674.52, 329,511.78 and 79,400.34 is: 119,100.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,674.52 : 329,511.78 = 79,400.34 : x
  2. Step 2: Convert to fraction form
    219,674.52/329,511.78 = 79,400.34/x
  3. Step 3: Cross multiply
    219,674.52x = 329,511.78 × 79,400.34
  4. Step 4: Simplify right side
    219,674.52x = 26,163,347,366.01
  5. Step 5: Solve for x
    x = 26,163,347,366.01/219,674.52
  6. Step 6: Final answer
    x = 119,100.51

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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.