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Finding the Fourth Proportional to 485,473.37, 728,093.12 and 148,516.94

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Solution

The fourth proportional to 485,473.37, 728,093.12 and 148,516.94 is: 222,739.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,473.37 : 728,093.12 = 148,516.94 : x
  2. Step 2: Convert to fraction form
    485,473.37/728,093.12 = 148,516.94/x
  3. Step 3: Cross multiply
    485,473.37x = 728,093.12 × 148,516.94
  4. Step 4: Simplify right side
    485,473.37x = 108,134,163,295.10
  5. Step 5: Solve for x
    x = 108,134,163,295.10/485,473.37
  6. Step 6: Final answer
    x = 222,739.64

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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.