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Finding the Fourth Proportional to 321,791.73, 482,765.63 and 97,138.74

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Solution

The fourth proportional to 321,791.73, 482,765.63 and 97,138.74 is: 145,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,791.73 : 482,765.63 = 97,138.74 : x
  2. Step 2: Convert to fraction form
    321,791.73/482,765.63 = 97,138.74/x
  3. Step 3: Cross multiply
    321,791.73x = 482,765.63 × 97,138.74
  4. Step 4: Simplify right side
    321,791.73x = 46,895,245,013.51
  5. Step 5: Solve for x
    x = 46,895,245,013.51/321,791.73
  6. Step 6: Final answer
    x = 145,731.67

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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.