Home / 321,525.12-482,268.24-143,984.48

Finding the Fourth Proportional to 321,525.12, 482,268.24 and 143,984.48

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Solution

The fourth proportional to 321,525.12, 482,268.24 and 143,984.48 is: 215,968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,525.12 : 482,268.24 = 143,984.48 : x
  2. Step 2: Convert to fraction form
    321,525.12/482,268.24 = 143,984.48/x
  3. Step 3: Cross multiply
    321,525.12x = 482,268.24 × 143,984.48
  4. Step 4: Simplify right side
    321,525.12x = 69,439,141,756.92
  5. Step 5: Solve for x
    x = 69,439,141,756.92/321,525.12
  6. Step 6: Final answer
    x = 215,968.01

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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.