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Finding the Fourth Proportional to 250,425.60, 375,639 and 72,936.96

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Solution

The fourth proportional to 250,425.60, 375,639 and 72,936.96 is: 109,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,425.60 : 375,639 = 72,936.96 : x
  2. Step 2: Convert to fraction form
    250,425.60/375,639 = 72,936.96/x
  3. Step 3: Cross multiply
    250,425.60x = 375,639 × 72,936.96
  4. Step 4: Simplify right side
    250,425.60x = 27,397,966,717.44
  5. Step 5: Solve for x
    x = 27,397,966,717.44/250,425.60
  6. Step 6: Final answer
    x = 109,405.61

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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.