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Finding the Fourth Proportional to 485,474.37, 728,094.61 and 148,517.94

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Solution

The fourth proportional to 485,474.37, 728,094.61 and 148,517.94 is: 222,741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,474.37 : 728,094.61 = 148,517.94 : x
  2. Step 2: Convert to fraction form
    485,474.37/728,094.61 = 148,517.94/x
  3. Step 3: Cross multiply
    485,474.37x = 728,094.61 × 148,517.94
  4. Step 4: Simplify right side
    485,474.37x = 108,135,111,602.30
  5. Step 5: Solve for x
    x = 108,135,111,602.30/485,474.37
  6. Step 6: Final answer
    x = 222,741.13

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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.