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Finding the Fourth Proportional to 173,640.48, 260,500 and 55,318.56

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Solution

The fourth proportional to 173,640.48, 260,500 and 55,318.56 is: 82,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,640.48 : 260,500 = 55,318.56 : x
  2. Step 2: Convert to fraction form
    173,640.48/260,500 = 55,318.56/x
  3. Step 3: Cross multiply
    173,640.48x = 260,500 × 55,318.56
  4. Step 4: Simplify right side
    173,640.48x = 14,410,484,880
  5. Step 5: Solve for x
    x = 14,410,484,880/173,640.48
  6. Step 6: Final answer
    x = 82,990.35

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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.