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Finding the Fourth Proportional to 400,725.81, 600,927.17 and 144,485.37

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Solution

The fourth proportional to 400,725.81, 600,927.17 and 144,485.37 is: 216,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,725.81 : 600,927.17 = 144,485.37 : x
  2. Step 2: Convert to fraction form
    400,725.81/600,927.17 = 144,485.37/x
  3. Step 3: Cross multiply
    400,725.81x = 600,927.17 × 144,485.37
  4. Step 4: Simplify right side
    400,725.81x = 86,825,183,778.08
  5. Step 5: Solve for x
    x = 86,825,183,778.08/400,725.81
  6. Step 6: Final answer
    x = 216,669.81

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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.