Home / 313,986.24-470,995.66-103,640.60

Finding the Fourth Proportional to 313,986.24, 470,995.66 and 103,640.60

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Solution

The fourth proportional to 313,986.24, 470,995.66 and 103,640.60 is: 155,466.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,986.24 : 470,995.66 = 103,640.60 : x
  2. Step 2: Convert to fraction form
    313,986.24/470,995.66 = 103,640.60/x
  3. Step 3: Cross multiply
    313,986.24x = 470,995.66 × 103,640.60
  4. Step 4: Simplify right side
    313,986.24x = 48,814,272,799.80
  5. Step 5: Solve for x
    x = 48,814,272,799.80/313,986.24
  6. Step 6: Final answer
    x = 155,466.28

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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.