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Finding the Fourth Proportional to 171,288.52, 236,473.40 and 103,322.64

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Solution

The fourth proportional to 171,288.52, 236,473.40 and 103,322.64 is: 142,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,288.52 : 236,473.40 = 103,322.64 : x
  2. Step 2: Convert to fraction form
    171,288.52/236,473.40 = 103,322.64/x
  3. Step 3: Cross multiply
    171,288.52x = 236,473.40 × 103,322.64
  4. Step 4: Simplify right side
    171,288.52x = 24,433,055,977.78
  5. Step 5: Solve for x
    x = 24,433,055,977.78/171,288.52
  6. Step 6: Final answer
    x = 142,642.69

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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.