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Finding the Fourth Proportional to 192,866.83, 289,346.43 and 80,484.53

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Solution

The fourth proportional to 192,866.83, 289,346.43 and 80,484.53 is: 120,746.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,866.83 : 289,346.43 = 80,484.53 : x
  2. Step 2: Convert to fraction form
    192,866.83/289,346.43 = 80,484.53/x
  3. Step 3: Cross multiply
    192,866.83x = 289,346.43 × 80,484.53
  4. Step 4: Simplify right side
    192,866.83x = 23,287,909,979.00
  5. Step 5: Solve for x
    x = 23,287,909,979.00/192,866.83
  6. Step 6: Final answer
    x = 120,746.06

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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.