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Finding the Fourth Proportional to 258,361.86, 356,551.24 and 143,652.17

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Solution

The fourth proportional to 258,361.86, 356,551.24 and 143,652.17 is: 198,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,361.86 : 356,551.24 = 143,652.17 : x
  2. Step 2: Convert to fraction form
    258,361.86/356,551.24 = 143,652.17/x
  3. Step 3: Cross multiply
    258,361.86x = 356,551.24 × 143,652.17
  4. Step 4: Simplify right side
    258,361.86x = 51,219,359,874.44
  5. Step 5: Solve for x
    x = 51,219,359,874.44/258,361.86
  6. Step 6: Final answer
    x = 198,246.60

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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.