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Finding the Fourth Proportional to 192,810.70, 289,216.05 and 163,359.10

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Solution

The fourth proportional to 192,810.70, 289,216.05 and 163,359.10 is: 245,038.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,810.70 : 289,216.05 = 163,359.10 : x
  2. Step 2: Convert to fraction form
    192,810.70/289,216.05 = 163,359.10/x
  3. Step 3: Cross multiply
    192,810.70x = 289,216.05 × 163,359.10
  4. Step 4: Simplify right side
    192,810.70x = 47,246,073,633.56
  5. Step 5: Solve for x
    x = 47,246,073,633.56/192,810.70
  6. Step 6: Final answer
    x = 245,038.65

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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.