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Finding the Fourth Proportional to 201,941.70, 302,912.55 and 123,209.70

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Solution

The fourth proportional to 201,941.70, 302,912.55 and 123,209.70 is: 184,814.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,941.70 : 302,912.55 = 123,209.70 : x
  2. Step 2: Convert to fraction form
    201,941.70/302,912.55 = 123,209.70/x
  3. Step 3: Cross multiply
    201,941.70x = 302,912.55 × 123,209.70
  4. Step 4: Simplify right side
    201,941.70x = 37,321,764,411.74
  5. Step 5: Solve for x
    x = 37,321,764,411.74/201,941.70
  6. Step 6: Final answer
    x = 184,814.55

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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.