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Finding the Fourth Proportional to 437,136.40, 655,510.20 and 200,551.60

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Solution

The fourth proportional to 437,136.40, 655,510.20 and 200,551.60 is: 300,738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,136.40 : 655,510.20 = 200,551.60 : x
  2. Step 2: Convert to fraction form
    437,136.40/655,510.20 = 200,551.60/x
  3. Step 3: Cross multiply
    437,136.40x = 655,510.20 × 200,551.60
  4. Step 4: Simplify right side
    437,136.40x = 131,463,619,426.32
  5. Step 5: Solve for x
    x = 131,463,619,426.32/437,136.40
  6. Step 6: Final answer
    x = 300,738.21

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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.