Home / 387,936.80-535,272.56-226,760.66

Finding the Fourth Proportional to 387,936.80, 535,272.56 and 226,760.66

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Solution

The fourth proportional to 387,936.80, 535,272.56 and 226,760.66 is: 312,882.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,936.80 : 535,272.56 = 226,760.66 : x
  2. Step 2: Convert to fraction form
    387,936.80/535,272.56 = 226,760.66/x
  3. Step 3: Cross multiply
    387,936.80x = 535,272.56 × 226,760.66
  4. Step 4: Simplify right side
    387,936.80x = 121,378,759,189.87
  5. Step 5: Solve for x
    x = 121,378,759,189.87/387,936.80
  6. Step 6: Final answer
    x = 312,882.82

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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.