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Finding the Fourth Proportional to 245,656.65, 368,443.75 and 68,181.69

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Solution

The fourth proportional to 245,656.65, 368,443.75 and 68,181.69 is: 102,261.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,656.65 : 368,443.75 = 68,181.69 : x
  2. Step 2: Convert to fraction form
    245,656.65/368,443.75 = 68,181.69/x
  3. Step 3: Cross multiply
    245,656.65x = 368,443.75 × 68,181.69
  4. Step 4: Simplify right side
    245,656.65x = 25,121,117,544.94
  5. Step 5: Solve for x
    x = 25,121,117,544.94/245,656.65
  6. Step 6: Final answer
    x = 102,261.09

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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.