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Finding the Fourth Proportional to 253,952.75, 350,452.86 and 139,230.02

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Solution

The fourth proportional to 253,952.75, 350,452.86 and 139,230.02 is: 192,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,952.75 : 350,452.86 = 139,230.02 : x
  2. Step 2: Convert to fraction form
    253,952.75/350,452.86 = 139,230.02/x
  3. Step 3: Cross multiply
    253,952.75x = 350,452.86 × 139,230.02
  4. Step 4: Simplify right side
    253,952.75x = 48,793,556,954.59
  5. Step 5: Solve for x
    x = 48,793,556,954.59/253,952.75
  6. Step 6: Final answer
    x = 192,136.36

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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.