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Finding the Fourth Proportional to 371,562.80, 512,757.64 and 218,606.75

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Solution

The fourth proportional to 371,562.80, 512,757.64 and 218,606.75 is: 301,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,562.80 : 512,757.64 = 218,606.75 : x
  2. Step 2: Convert to fraction form
    371,562.80/512,757.64 = 218,606.75/x
  3. Step 3: Cross multiply
    371,562.80x = 512,757.64 × 218,606.75
  4. Step 4: Simplify right side
    371,562.80x = 112,092,280,850.38
  5. Step 5: Solve for x
    x = 112,092,280,850.38/371,562.80
  6. Step 6: Final answer
    x = 301,677.89

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1.5x scale

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.