Home / 408,938.66-613,361.07-109,442.58

Finding the Fourth Proportional to 408,938.66, 613,361.07 and 109,442.58

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Solution

The fourth proportional to 408,938.66, 613,361.07 and 109,442.58 is: 164,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,938.66 : 613,361.07 = 109,442.58 : x
  2. Step 2: Convert to fraction form
    408,938.66/613,361.07 = 109,442.58/x
  3. Step 3: Cross multiply
    408,938.66x = 613,361.07 × 109,442.58
  4. Step 4: Simplify right side
    408,938.66x = 67,127,817,972.36
  5. Step 5: Solve for x
    x = 67,127,817,972.36/408,938.66
  6. Step 6: Final answer
    x = 164,151.31

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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.