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Finding the Fourth Proportional to 375,687.68, 518,450.49 and 203,606.01

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Solution

The fourth proportional to 375,687.68, 518,450.49 and 203,606.01 is: 280,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,687.68 : 518,450.49 = 203,606.01 : x
  2. Step 2: Convert to fraction form
    375,687.68/518,450.49 = 203,606.01/x
  3. Step 3: Cross multiply
    375,687.68x = 518,450.49 × 203,606.01
  4. Step 4: Simplify right side
    375,687.68x = 105,559,635,651.45
  5. Step 5: Solve for x
    x = 105,559,635,651.45/375,687.68
  6. Step 6: Final answer
    x = 280,977.11

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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.