Home / 388,367.44-536,112.24-261,116.80

Finding the Fourth Proportional to 388,367.44, 536,112.24 and 261,116.80

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Solution

The fourth proportional to 388,367.44, 536,112.24 and 261,116.80 is: 360,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,367.44 : 536,112.24 = 261,116.80 : x
  2. Step 2: Convert to fraction form
    388,367.44/536,112.24 = 261,116.80/x
  3. Step 3: Cross multiply
    388,367.44x = 536,112.24 × 261,116.80
  4. Step 4: Simplify right side
    388,367.44x = 139,987,912,549.63
  5. Step 5: Solve for x
    x = 139,987,912,549.63/388,367.44
  6. Step 6: Final answer
    x = 360,452.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.