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Finding the Fourth Proportional to 375,971.76, 518,845.04 and 203,890.04

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Solution

The fourth proportional to 375,971.76, 518,845.04 and 203,890.04 is: 281,370.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,971.76 : 518,845.04 = 203,890.04 : x
  2. Step 2: Convert to fraction form
    375,971.76/518,845.04 = 203,890.04/x
  3. Step 3: Cross multiply
    375,971.76x = 518,845.04 × 203,890.04
  4. Step 4: Simplify right side
    375,971.76x = 105,787,335,959.40
  5. Step 5: Solve for x
    x = 105,787,335,959.40/375,971.76
  6. Step 6: Final answer
    x = 281,370.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.