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Finding the Fourth Proportional to 375,645.60, 518,389.94 and 203,568.32

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Solution

The fourth proportional to 375,645.60, 518,389.94 and 203,568.32 is: 280,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,645.60 : 518,389.94 = 203,568.32 : x
  2. Step 2: Convert to fraction form
    375,645.60/518,389.94 = 203,568.32/x
  3. Step 3: Cross multiply
    375,645.60x = 518,389.94 × 203,568.32
  4. Step 4: Simplify right side
    375,645.60x = 105,527,770,995.60
  5. Step 5: Solve for x
    x = 105,527,770,995.60/375,645.60
  6. Step 6: Final answer
    x = 280,923.75

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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.