Home / 309,938.28-427,759.83-174,028.38

Finding the Fourth Proportional to 309,938.28, 427,759.83 and 174,028.38

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Solution

The fourth proportional to 309,938.28, 427,759.83 and 174,028.38 is: 240,184.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,938.28 : 427,759.83 = 174,028.38 : x
  2. Step 2: Convert to fraction form
    309,938.28/427,759.83 = 174,028.38/x
  3. Step 3: Cross multiply
    309,938.28x = 427,759.83 × 174,028.38
  4. Step 4: Simplify right side
    309,938.28x = 74,442,350,243.98
  5. Step 5: Solve for x
    x = 74,442,350,243.98/309,938.28
  6. Step 6: Final answer
    x = 240,184.43

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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.