Home / 395,272.90-545,476.78-213,984.83

Finding the Fourth Proportional to 395,272.90, 545,476.78 and 213,984.83

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Solution

The fourth proportional to 395,272.90, 545,476.78 and 213,984.83 is: 295,299.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,272.90 : 545,476.78 = 213,984.83 : x
  2. Step 2: Convert to fraction form
    395,272.90/545,476.78 = 213,984.83/x
  3. Step 3: Cross multiply
    395,272.90x = 545,476.78 × 213,984.83
  4. Step 4: Simplify right side
    395,272.90x = 116,723,756,037.25
  5. Step 5: Solve for x
    x = 116,723,756,037.25/395,272.90
  6. Step 6: Final answer
    x = 295,299.16

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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.