Home / 281,938.28-389,074.68-154,616.60

Finding the Fourth Proportional to 281,938.28, 389,074.68 and 154,616.60

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Solution

The fourth proportional to 281,938.28, 389,074.68 and 154,616.60 is: 213,370.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,938.28 : 389,074.68 = 154,616.60 : x
  2. Step 2: Convert to fraction form
    281,938.28/389,074.68 = 154,616.60/x
  3. Step 3: Cross multiply
    281,938.28x = 389,074.68 × 154,616.60
  4. Step 4: Simplify right side
    281,938.28x = 60,157,404,167.69
  5. Step 5: Solve for x
    x = 60,157,404,167.69/281,938.28
  6. Step 6: Final answer
    x = 213,370.83

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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.