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Finding the Fourth Proportional to 248,141.80, 342,433.12 and 134,964.52

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Solution

The fourth proportional to 248,141.80, 342,433.12 and 134,964.52 is: 186,249.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,141.80 : 342,433.12 = 134,964.52 : x
  2. Step 2: Convert to fraction form
    248,141.80/342,433.12 = 134,964.52/x
  3. Step 3: Cross multiply
    248,141.80x = 342,433.12 × 134,964.52
  4. Step 4: Simplify right side
    248,141.80x = 46,216,321,672.90
  5. Step 5: Solve for x
    x = 46,216,321,672.90/248,141.80
  6. Step 6: Final answer
    x = 186,249.64

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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.