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Finding the Fourth Proportional to 400,725.59, 600,134.31 and 231,890.00

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Solution

The fourth proportional to 400,725.59, 600,134.31 and 231,890.00 is: 347,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,725.59 : 600,134.31 = 231,890.00 : x
  2. Step 2: Convert to fraction form
    400,725.59/600,134.31 = 231,890.00/x
  3. Step 3: Cross multiply
    400,725.59x = 600,134.31 × 231,890.00
  4. Step 4: Simplify right side
    400,725.59x = 139,165,142,145.23
  5. Step 5: Solve for x
    x = 139,165,142,145.23/400,725.59
  6. Step 6: Final answer
    x = 347,282.90

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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.