Home / 326,030-449,922.63-190,157.78

Finding the Fourth Proportional to 326,030, 449,922.63 and 190,157.78

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Solution

The fourth proportional to 326,030, 449,922.63 and 190,157.78 is: 262,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,030 : 449,922.63 = 190,157.78 : x
  2. Step 2: Convert to fraction form
    326,030/449,922.63 = 190,157.78/x
  3. Step 3: Cross multiply
    326,030x = 449,922.63 × 190,157.78
  4. Step 4: Simplify right side
    326,030x = 85,556,288,492.56
  5. Step 5: Solve for x
    x = 85,556,288,492.56/326,030
  6. Step 6: Final answer
    x = 262,418.45

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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.