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Finding the Fourth Proportional to 248,854.45, 343,404.34 and 141,409.57

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Solution

The fourth proportional to 248,854.45, 343,404.34 and 141,409.57 is: 195,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,854.45 : 343,404.34 = 141,409.57 : x
  2. Step 2: Convert to fraction form
    248,854.45/343,404.34 = 141,409.57/x
  3. Step 3: Cross multiply
    248,854.45x = 343,404.34 × 141,409.57
  4. Step 4: Simplify right side
    248,854.45x = 48,560,660,055.53
  5. Step 5: Solve for x
    x = 48,560,660,055.53/248,854.45
  6. Step 6: Final answer
    x = 195,136.80

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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.