Home / 395,180.52-545,350.77-213,892.40

Finding the Fourth Proportional to 395,180.52, 545,350.77 and 213,892.40

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Solution

The fourth proportional to 395,180.52, 545,350.77 and 213,892.40 is: 295,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,180.52 : 545,350.77 = 213,892.40 : x
  2. Step 2: Convert to fraction form
    395,180.52/545,350.77 = 213,892.40/x
  3. Step 3: Cross multiply
    395,180.52x = 545,350.77 × 213,892.40
  4. Step 4: Simplify right side
    395,180.52x = 116,646,381,240.93
  5. Step 5: Solve for x
    x = 116,646,381,240.93/395,180.52
  6. Step 6: Final answer
    x = 295,172.40

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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.