Home / 313,975.24-470,979.20-103,629.60

Finding the Fourth Proportional to 313,975.24, 470,979.20 and 103,629.60

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Solution

The fourth proportional to 313,975.24, 470,979.20 and 103,629.60 is: 155,449.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,975.24 : 470,979.20 = 103,629.60 : x
  2. Step 2: Convert to fraction form
    313,975.24/470,979.20 = 103,629.60/x
  3. Step 3: Cross multiply
    313,975.24x = 470,979.20 × 103,629.60
  4. Step 4: Simplify right side
    313,975.24x = 48,807,386,104.32
  5. Step 5: Solve for x
    x = 48,807,386,104.32/313,975.24
  6. Step 6: Final answer
    x = 155,449.79

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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.