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Finding the Fourth Proportional to 375,952.21, 518,815.19 and 203,870.05

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Solution

The fourth proportional to 375,952.21, 518,815.19 and 203,870.05 is: 281,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,952.21 : 518,815.19 = 203,870.05 : x
  2. Step 2: Convert to fraction form
    375,952.21/518,815.19 = 203,870.05/x
  3. Step 3: Cross multiply
    375,952.21x = 518,815.19 × 203,870.05
  4. Step 4: Simplify right side
    375,952.21x = 105,770,877,938.70
  5. Step 5: Solve for x
    x = 105,770,877,938.70/375,952.21
  6. Step 6: Final answer
    x = 281,341.29

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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.