Home / 321,007.20-481,568.40-134,037.60

Finding the Fourth Proportional to 321,007.20, 481,568.40 and 134,037.60

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Solution

The fourth proportional to 321,007.20, 481,568.40 and 134,037.60 is: 201,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,007.20 : 481,568.40 = 134,037.60 : x
  2. Step 2: Convert to fraction form
    321,007.20/481,568.40 = 134,037.60/x
  3. Step 3: Cross multiply
    321,007.20x = 481,568.40 × 134,037.60
  4. Step 4: Simplify right side
    321,007.20x = 64,548,272,571.84
  5. Step 5: Solve for x
    x = 64,548,272,571.84/321,007.20
  6. Step 6: Final answer
    x = 201,080.45

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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.