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Finding the Fourth Proportional to 245,615.49, 368,382.06 and 68,140.44

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Solution

The fourth proportional to 245,615.49, 368,382.06 and 68,140.44 is: 102,199.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,615.49 : 368,382.06 = 68,140.44 : x
  2. Step 2: Convert to fraction form
    245,615.49/368,382.06 = 68,140.44/x
  3. Step 3: Cross multiply
    245,615.49x = 368,382.06 × 68,140.44
  4. Step 4: Simplify right side
    245,615.49x = 25,101,715,656.51
  5. Step 5: Solve for x
    x = 25,101,715,656.51/245,615.49
  6. Step 6: Final answer
    x = 102,199.24

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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.