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Finding the Fourth Proportional to 364,034.40, 545,905.80 and 127,255.20

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Solution

The fourth proportional to 364,034.40, 545,905.80 and 127,255.20 is: 190,831.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,034.40 : 545,905.80 = 127,255.20 : x
  2. Step 2: Convert to fraction form
    364,034.40/545,905.80 = 127,255.20/x
  3. Step 3: Cross multiply
    364,034.40x = 545,905.80 × 127,255.20
  4. Step 4: Simplify right side
    364,034.40x = 69,469,351,760.16
  5. Step 5: Solve for x
    x = 69,469,351,760.16/364,034.40
  6. Step 6: Final answer
    x = 190,831.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.