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Finding the Fourth Proportional to 436,940.60, 655,485.60 and 200,303.60

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Solution

The fourth proportional to 436,940.60, 655,485.60 and 200,303.60 is: 300,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,940.60 : 655,485.60 = 200,303.60 : x
  2. Step 2: Convert to fraction form
    436,940.60/655,485.60 = 200,303.60/x
  3. Step 3: Cross multiply
    436,940.60x = 655,485.60 × 200,303.60
  4. Step 4: Simplify right side
    436,940.60x = 131,296,125,428.16
  5. Step 5: Solve for x
    x = 131,296,125,428.16/436,940.60
  6. Step 6: Final answer
    x = 300,489.64

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1.5x scale

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.