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Finding the Fourth Proportional to 210,736.58, 315,771.95 and 171,100.04

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Solution

The fourth proportional to 210,736.58, 315,771.95 and 171,100.04 is: 256,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,736.58 : 315,771.95 = 171,100.04 : x
  2. Step 2: Convert to fraction form
    210,736.58/315,771.95 = 171,100.04/x
  3. Step 3: Cross multiply
    210,736.58x = 315,771.95 × 171,100.04
  4. Step 4: Simplify right side
    210,736.58x = 54,028,593,275.88
  5. Step 5: Solve for x
    x = 54,028,593,275.88/210,736.58
  6. Step 6: Final answer
    x = 256,379.76

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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.