Home / 214,945.40-322,418.10-57,189.80

Finding the Fourth Proportional to 214,945.40, 322,418.10 and 57,189.80

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Solution

The fourth proportional to 214,945.40, 322,418.10 and 57,189.80 is: 85,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,945.40 : 322,418.10 = 57,189.80 : x
  2. Step 2: Convert to fraction form
    214,945.40/322,418.10 = 57,189.80/x
  3. Step 3: Cross multiply
    214,945.40x = 322,418.10 × 57,189.80
  4. Step 4: Simplify right side
    214,945.40x = 18,439,026,655.38
  5. Step 5: Solve for x
    x = 18,439,026,655.38/214,945.40
  6. Step 6: Final answer
    x = 85,784.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.