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Finding the Fourth Proportional to 248,447.94, 342,857.94 and 135,270.66

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Solution

The fourth proportional to 248,447.94, 342,857.94 and 135,270.66 is: 186,673.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,447.94 : 342,857.94 = 135,270.66 : x
  2. Step 2: Convert to fraction form
    248,447.94/342,857.94 = 135,270.66/x
  3. Step 3: Cross multiply
    248,447.94x = 342,857.94 × 135,270.66
  4. Step 4: Simplify right side
    248,447.94x = 46,378,619,830.04
  5. Step 5: Solve for x
    x = 46,378,619,830.04/248,447.94
  6. Step 6: Final answer
    x = 186,673.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.