Home / 393,916.17-591,023.16-154,201.38

Finding the Fourth Proportional to 393,916.17, 591,023.16 and 154,201.38

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Solution

The fourth proportional to 393,916.17, 591,023.16 and 154,201.38 is: 231,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,916.17 : 591,023.16 = 154,201.38 : x
  2. Step 2: Convert to fraction form
    393,916.17/591,023.16 = 154,201.38/x
  3. Step 3: Cross multiply
    393,916.17x = 591,023.16 × 154,201.38
  4. Step 4: Simplify right side
    393,916.17x = 91,136,586,883.96
  5. Step 5: Solve for x
    x = 91,136,586,883.96/393,916.17
  6. Step 6: Final answer
    x = 231,360.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.