Home / 387,769.28-535,121.60-226,759.61

Finding the Fourth Proportional to 387,769.28, 535,121.60 and 226,759.61

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Solution

The fourth proportional to 387,769.28, 535,121.60 and 226,759.61 is: 312,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,769.28 : 535,121.60 = 226,759.61 : x
  2. Step 2: Convert to fraction form
    387,769.28/535,121.60 = 226,759.61/x
  3. Step 3: Cross multiply
    387,769.28x = 535,121.60 × 226,759.61
  4. Step 4: Simplify right side
    387,769.28x = 121,343,963,515.88
  5. Step 5: Solve for x
    x = 121,343,963,515.88/387,769.28
  6. Step 6: Final answer
    x = 312,928.25

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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.