Home / 395,568.83-545,887.61-214,280.78

Finding the Fourth Proportional to 395,568.83, 545,887.61 and 214,280.78

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Solution

The fourth proportional to 395,568.83, 545,887.61 and 214,280.78 is: 295,708.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,568.83 : 545,887.61 = 214,280.78 : x
  2. Step 2: Convert to fraction form
    395,568.83/545,887.61 = 214,280.78/x
  3. Step 3: Cross multiply
    395,568.83x = 545,887.61 × 214,280.78
  4. Step 4: Simplify right side
    395,568.83x = 116,973,220,669.40
  5. Step 5: Solve for x
    x = 116,973,220,669.40/395,568.83
  6. Step 6: Final answer
    x = 295,708.89

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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.