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Finding the Fourth Proportional to 245,744.54, 368,616.54 and 77,279.66

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Solution

The fourth proportional to 245,744.54, 368,616.54 and 77,279.66 is: 115,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,744.54 : 368,616.54 = 77,279.66 : x
  2. Step 2: Convert to fraction form
    245,744.54/368,616.54 = 77,279.66/x
  3. Step 3: Cross multiply
    245,744.54x = 368,616.54 × 77,279.66
  4. Step 4: Simplify right side
    245,744.54x = 28,486,560,881.58
  5. Step 5: Solve for x
    x = 28,486,560,881.58/245,744.54
  6. Step 6: Final answer
    x = 115,919.41

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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.