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Finding the Fourth Proportional to 230,768.64, 346,165.56 and 72,985.32

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Solution

The fourth proportional to 230,768.64, 346,165.56 and 72,985.32 is: 109,481.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,768.64 : 346,165.56 = 72,985.32 : x
  2. Step 2: Convert to fraction form
    230,768.64/346,165.56 = 72,985.32/x
  3. Step 3: Cross multiply
    230,768.64x = 346,165.56 × 72,985.32
  4. Step 4: Simplify right side
    230,768.64x = 25,265,004,169.58
  5. Step 5: Solve for x
    x = 25,265,004,169.58/230,768.64
  6. Step 6: Final answer
    x = 109,481.97

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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.