Home / 190,408.10-285,266.55-155,156.90

Finding the Fourth Proportional to 190,408.10, 285,266.55 and 155,156.90

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Solution

The fourth proportional to 190,408.10, 285,266.55 and 155,156.90 is: 232,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,408.10 : 285,266.55 = 155,156.90 : x
  2. Step 2: Convert to fraction form
    190,408.10/285,266.55 = 155,156.90/x
  3. Step 3: Cross multiply
    190,408.10x = 285,266.55 × 155,156.90
  4. Step 4: Simplify right side
    190,408.10x = 44,261,073,571.70
  5. Step 5: Solve for x
    x = 44,261,073,571.70/190,408.10
  6. Step 6: Final answer
    x = 232,453.73

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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.