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Finding the Fourth Proportional to 321,263.58, 443,346.36 and 178,026.03

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Solution

The fourth proportional to 321,263.58, 443,346.36 and 178,026.03 is: 245,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,263.58 : 443,346.36 = 178,026.03 : x
  2. Step 2: Convert to fraction form
    321,263.58/443,346.36 = 178,026.03/x
  3. Step 3: Cross multiply
    321,263.58x = 443,346.36 × 178,026.03
  4. Step 4: Simplify right side
    321,263.58x = 78,927,192,385.75
  5. Step 5: Solve for x
    x = 78,927,192,385.75/321,263.58
  6. Step 6: Final answer
    x = 245,677.37

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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.