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Finding the Fourth Proportional to 291,395.88, 436,787.64 and 133,494.48

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Solution

The fourth proportional to 291,395.88, 436,787.64 and 133,494.48 is: 200,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,395.88 : 436,787.64 = 133,494.48 : x
  2. Step 2: Convert to fraction form
    291,395.88/436,787.64 = 133,494.48/x
  3. Step 3: Cross multiply
    291,395.88x = 436,787.64 × 133,494.48
  4. Step 4: Simplify right side
    291,395.88x = 58,308,738,872.23
  5. Step 5: Solve for x
    x = 58,308,738,872.23/291,395.88
  6. Step 6: Final answer
    x = 200,101.45

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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.