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Finding the Fourth Proportional to 435,758.54, 653,638.33 and 136,240.69

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Solution

The fourth proportional to 435,758.54, 653,638.33 and 136,240.69 is: 204,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,758.54 : 653,638.33 = 136,240.69 : x
  2. Step 2: Convert to fraction form
    435,758.54/653,638.33 = 136,240.69/x
  3. Step 3: Cross multiply
    435,758.54x = 653,638.33 × 136,240.69
  4. Step 4: Simplify right side
    435,758.54x = 89,052,136,408.44
  5. Step 5: Solve for x
    x = 89,052,136,408.44/435,758.54
  6. Step 6: Final answer
    x = 204,361.20

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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.