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Finding the Fourth Proportional to 173,635.80, 260,016.30 and 138,643.80

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Solution

The fourth proportional to 173,635.80, 260,016.30 and 138,643.80 is: 207,616.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,635.80 : 260,016.30 = 138,643.80 : x
  2. Step 2: Convert to fraction form
    173,635.80/260,016.30 = 138,643.80/x
  3. Step 3: Cross multiply
    173,635.80x = 260,016.30 × 138,643.80
  4. Step 4: Simplify right side
    173,635.80x = 36,049,647,893.94
  5. Step 5: Solve for x
    x = 36,049,647,893.94/173,635.80
  6. Step 6: Final answer
    x = 207,616.45

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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.