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Finding the Fourth Proportional to 245,620.76, 368,431.11 and 68,127.77

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Solution

The fourth proportional to 245,620.76, 368,431.11 and 68,127.77 is: 102,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,620.76 : 368,431.11 = 68,127.77 : x
  2. Step 2: Convert to fraction form
    245,620.76/368,431.11 = 68,127.77/x
  3. Step 3: Cross multiply
    245,620.76x = 368,431.11 × 68,127.77
  4. Step 4: Simplify right side
    245,620.76x = 25,100,389,807.79
  5. Step 5: Solve for x
    x = 25,100,389,807.79/245,620.76
  6. Step 6: Final answer
    x = 102,191.65

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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.