Home / 281,936.28-389,071.92-154,614.60

Finding the Fourth Proportional to 281,936.28, 389,071.92 and 154,614.60

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Solution

The fourth proportional to 281,936.28, 389,071.92 and 154,614.60 is: 213,368.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,936.28 : 389,071.92 = 154,614.60 : x
  2. Step 2: Convert to fraction form
    281,936.28/389,071.92 = 154,614.60/x
  3. Step 3: Cross multiply
    281,936.28x = 389,071.92 × 154,614.60
  4. Step 4: Simplify right side
    281,936.28x = 60,156,199,282.03
  5. Step 5: Solve for x
    x = 60,156,199,282.03/281,936.28
  6. Step 6: Final answer
    x = 213,368.07

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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.