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Finding the Fourth Proportional to 481,143.72, 721,472.58 and 161,185.08

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Solution

The fourth proportional to 481,143.72, 721,472.58 and 161,185.08 is: 241,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,143.72 : 721,472.58 = 161,185.08 : x
  2. Step 2: Convert to fraction form
    481,143.72/721,472.58 = 161,185.08/x
  3. Step 3: Cross multiply
    481,143.72x = 721,472.58 × 161,185.08
  4. Step 4: Simplify right side
    481,143.72x = 116,290,615,525.11
  5. Step 5: Solve for x
    x = 116,290,615,525.11/481,143.72
  6. Step 6: Final answer
    x = 241,696.21

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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.