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Finding the Fourth Proportional to 360,004.80, 538,840.80 and 255,028.80

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Solution

The fourth proportional to 360,004.80, 538,840.80 and 255,028.80 is: 381,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,004.80 : 538,840.80 = 255,028.80 : x
  2. Step 2: Convert to fraction form
    360,004.80/538,840.80 = 255,028.80/x
  3. Step 3: Cross multiply
    360,004.80x = 538,840.80 × 255,028.80
  4. Step 4: Simplify right side
    360,004.80x = 137,419,922,615.04
  5. Step 5: Solve for x
    x = 137,419,922,615.04/360,004.80
  6. Step 6: Final answer
    x = 381,716.92

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1.5x scale

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.