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Finding the Fourth Proportional to 321,749.82, 444,006.29 and 176,555.16

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Solution

The fourth proportional to 321,749.82, 444,006.29 and 176,555.16 is: 243,641.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,749.82 : 444,006.29 = 176,555.16 : x
  2. Step 2: Convert to fraction form
    321,749.82/444,006.29 = 176,555.16/x
  3. Step 3: Cross multiply
    321,749.82x = 444,006.29 × 176,555.16
  4. Step 4: Simplify right side
    321,749.82x = 78,391,601,571.96
  5. Step 5: Solve for x
    x = 78,391,601,571.96/321,749.82
  6. Step 6: Final answer
    x = 243,641.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.