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Finding the Fourth Proportional to 219,793.65, 308,410.95 and 219,793.65

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Solution

The fourth proportional to 219,793.65, 308,410.95 and 219,793.65 is: 308,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,793.65 : 308,410.95 = 219,793.65 : x
  2. Step 2: Convert to fraction form
    219,793.65/308,410.95 = 219,793.65/x
  3. Step 3: Cross multiply
    219,793.65x = 308,410.95 × 219,793.65
  4. Step 4: Simplify right side
    219,793.65x = 67,786,768,400.47
  5. Step 5: Solve for x
    x = 67,786,768,400.47/219,793.65
  6. Step 6: Final answer
    x = 308,410.95

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.