Home / 323,621.40-485,648.04-113,259.36

Finding the Fourth Proportional to 323,621.40, 485,648.04 and 113,259.36

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Solution

The fourth proportional to 323,621.40, 485,648.04 and 113,259.36 is: 169,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,621.40 : 485,648.04 = 113,259.36 : x
  2. Step 2: Convert to fraction form
    323,621.40/485,648.04 = 113,259.36/x
  3. Step 3: Cross multiply
    323,621.40x = 485,648.04 × 113,259.36
  4. Step 4: Simplify right side
    323,621.40x = 55,004,186,195.65
  5. Step 5: Solve for x
    x = 55,004,186,195.65/323,621.40
  6. Step 6: Final answer
    x = 169,964.61

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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.