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Finding the Fourth Proportional to 208,108.44, 312,162.64 and 88,184.28

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Solution

The fourth proportional to 208,108.44, 312,162.64 and 88,184.28 is: 132,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,108.44 : 312,162.64 = 88,184.28 : x
  2. Step 2: Convert to fraction form
    208,108.44/312,162.64 = 88,184.28/x
  3. Step 3: Cross multiply
    208,108.44x = 312,162.64 × 88,184.28
  4. Step 4: Simplify right side
    208,108.44x = 27,527,837,651.30
  5. Step 5: Solve for x
    x = 27,527,837,651.30/208,108.44
  6. Step 6: Final answer
    x = 132,276.41

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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.