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Finding the Fourth Proportional to 291,438.44, 436,851.36 and 133,537.04

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Solution

The fourth proportional to 291,438.44, 436,851.36 and 133,537.04 is: 200,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,438.44 : 436,851.36 = 133,537.04 : x
  2. Step 2: Convert to fraction form
    291,438.44/436,851.36 = 133,537.04/x
  3. Step 3: Cross multiply
    291,438.44x = 436,851.36 × 133,537.04
  4. Step 4: Simplify right side
    291,438.44x = 58,335,837,534.37
  5. Step 5: Solve for x
    x = 58,335,837,534.37/291,438.44
  6. Step 6: Final answer
    x = 200,165.21

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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.