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Finding the Fourth Proportional to 149,266.40, 224,072.40 and 90,168.80

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Solution

The fourth proportional to 149,266.40, 224,072.40 and 90,168.80 is: 135,357.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,266.40 : 224,072.40 = 90,168.80 : x
  2. Step 2: Convert to fraction form
    149,266.40/224,072.40 = 90,168.80/x
  3. Step 3: Cross multiply
    149,266.40x = 224,072.40 × 90,168.80
  4. Step 4: Simplify right side
    149,266.40x = 20,204,339,421.12
  5. Step 5: Solve for x
    x = 20,204,339,421.12/149,266.40
  6. Step 6: Final answer
    x = 135,357.58

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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.