Home / 321,131.20-481,113.60-196,326.40

Finding the Fourth Proportional to 321,131.20, 481,113.60 and 196,326.40

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Solution

The fourth proportional to 321,131.20, 481,113.60 and 196,326.40 is: 294,133.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,131.20 : 481,113.60 = 196,326.40 : x
  2. Step 2: Convert to fraction form
    321,131.20/481,113.60 = 196,326.40/x
  3. Step 3: Cross multiply
    321,131.20x = 481,113.60 × 196,326.40
  4. Step 4: Simplify right side
    321,131.20x = 94,455,301,079.04
  5. Step 5: Solve for x
    x = 94,455,301,079.04/321,131.20
  6. Step 6: Final answer
    x = 294,133.06

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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.