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Finding the Fourth Proportional to 248,080.40, 342,346.92 and 134,906

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Solution

The fourth proportional to 248,080.40, 342,346.92 and 134,906 is: 186,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,080.40 : 342,346.92 = 134,906 : x
  2. Step 2: Convert to fraction form
    248,080.40/342,346.92 = 134,906/x
  3. Step 3: Cross multiply
    248,080.40x = 342,346.92 × 134,906
  4. Step 4: Simplify right side
    248,080.40x = 46,184,653,589.52
  5. Step 5: Solve for x
    x = 46,184,653,589.52/248,080.40
  6. Step 6: Final answer
    x = 186,168.09

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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.