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Finding the Fourth Proportional to 179,089.60, 268,828.80 and 139,820.80

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Solution

The fourth proportional to 179,089.60, 268,828.80 and 139,820.80 is: 209,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,089.60 : 268,828.80 = 139,820.80 : x
  2. Step 2: Convert to fraction form
    179,089.60/268,828.80 = 139,820.80/x
  3. Step 3: Cross multiply
    179,089.60x = 268,828.80 × 139,820.80
  4. Step 4: Simplify right side
    179,089.60x = 37,587,857,879.04
  5. Step 5: Solve for x
    x = 37,587,857,879.04/179,089.60
  6. Step 6: Final answer
    x = 209,882.97

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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.