Home / 321,130.20-481,112.10-196,325.40

Finding the Fourth Proportional to 321,130.20, 481,112.10 and 196,325.40

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Solution

The fourth proportional to 321,130.20, 481,112.10 and 196,325.40 is: 294,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,130.20 : 481,112.10 = 196,325.40 : x
  2. Step 2: Convert to fraction form
    321,130.20/481,112.10 = 196,325.40/x
  3. Step 3: Cross multiply
    321,130.20x = 481,112.10 × 196,325.40
  4. Step 4: Simplify right side
    321,130.20x = 94,454,525,477.34
  5. Step 5: Solve for x
    x = 94,454,525,477.34/321,130.20
  6. Step 6: Final answer
    x = 294,131.56

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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.