Home / 281,989.38-389,213.19-191,496.18

Finding the Fourth Proportional to 281,989.38, 389,213.19 and 191,496.18

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Solution

The fourth proportional to 281,989.38, 389,213.19 and 191,496.18 is: 264,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,989.38 : 389,213.19 = 191,496.18 : x
  2. Step 2: Convert to fraction form
    281,989.38/389,213.19 = 191,496.18/x
  3. Step 3: Cross multiply
    281,989.38x = 389,213.19 × 191,496.18
  4. Step 4: Simplify right side
    281,989.38x = 74,532,839,090.61
  5. Step 5: Solve for x
    x = 74,532,839,090.61/281,989.38
  6. Step 6: Final answer
    x = 264,310.80

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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.