Home / 395,399.13-545,649.81-214,111.05

Finding the Fourth Proportional to 395,399.13, 545,649.81 and 214,111.05

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Solution

The fourth proportional to 395,399.13, 545,649.81 and 214,111.05 is: 295,472.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,399.13 : 545,649.81 = 214,111.05 : x
  2. Step 2: Convert to fraction form
    395,399.13/545,649.81 = 214,111.05/x
  3. Step 3: Cross multiply
    395,399.13x = 545,649.81 × 214,111.05
  4. Step 4: Simplify right side
    395,399.13x = 116,829,650,902.30
  5. Step 5: Solve for x
    x = 116,829,650,902.30/395,399.13
  6. Step 6: Final answer
    x = 295,472.71

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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.