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Finding the Fourth Proportional to 245,378.34, 368,067.33 and 79,166.34

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Solution

The fourth proportional to 245,378.34, 368,067.33 and 79,166.34 is: 118,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,378.34 : 368,067.33 = 79,166.34 : x
  2. Step 2: Convert to fraction form
    245,378.34/368,067.33 = 79,166.34/x
  3. Step 3: Cross multiply
    245,378.34x = 368,067.33 × 79,166.34
  4. Step 4: Simplify right side
    245,378.34x = 29,138,543,389.67
  5. Step 5: Solve for x
    x = 29,138,543,389.67/245,378.34
  6. Step 6: Final answer
    x = 118,749.45

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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.