Home / 214,939.10-322,408.65-205,838.30

Finding the Fourth Proportional to 214,939.10, 322,408.65 and 205,838.30

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Solution

The fourth proportional to 214,939.10, 322,408.65 and 205,838.30 is: 308,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,939.10 : 322,408.65 = 205,838.30 : x
  2. Step 2: Convert to fraction form
    214,939.10/322,408.65 = 205,838.30/x
  3. Step 3: Cross multiply
    214,939.10x = 322,408.65 × 205,838.30
  4. Step 4: Simplify right side
    214,939.10x = 66,364,048,421.30
  5. Step 5: Solve for x
    x = 66,364,048,421.30/214,939.10
  6. Step 6: Final answer
    x = 308,757.45

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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.