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Finding the Fourth Proportional to 179,818, 269,739.96 and 69,010

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Solution

The fourth proportional to 179,818, 269,739.96 and 69,010 is: 103,519.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,818 : 269,739.96 = 69,010 : x
  2. Step 2: Convert to fraction form
    179,818/269,739.96 = 69,010/x
  3. Step 3: Cross multiply
    179,818x = 269,739.96 × 69,010
  4. Step 4: Simplify right side
    179,818x = 18,614,754,639.60
  5. Step 5: Solve for x
    x = 18,614,754,639.60/179,818
  6. Step 6: Final answer
    x = 103,519.97

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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.