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Finding the Fourth Proportional to 371,667.68, 512,857.87 and 218,672.25

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Solution

The fourth proportional to 371,667.68, 512,857.87 and 218,672.25 is: 301,742.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,667.68 : 512,857.87 = 218,672.25 : x
  2. Step 2: Convert to fraction form
    371,667.68/512,857.87 = 218,672.25/x
  3. Step 3: Cross multiply
    371,667.68x = 512,857.87 × 218,672.25
  4. Step 4: Simplify right side
    371,667.68x = 112,147,784,363.11
  5. Step 5: Solve for x
    x = 112,147,784,363.11/371,667.68
  6. Step 6: Final answer
    x = 301,742.09

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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.