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Finding the Fourth Proportional to 272,574.22, 408,832.56 and 72,914.76

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Solution

The fourth proportional to 272,574.22, 408,832.56 and 72,914.76 is: 109,364.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,574.22 : 408,832.56 = 72,914.76 : x
  2. Step 2: Convert to fraction form
    272,574.22/408,832.56 = 72,914.76/x
  3. Step 3: Cross multiply
    272,574.22x = 408,832.56 × 72,914.76
  4. Step 4: Simplify right side
    272,574.22x = 29,809,927,992.59
  5. Step 5: Solve for x
    x = 29,809,927,992.59/272,574.22
  6. Step 6: Final answer
    x = 109,364.44

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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.