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Finding the Fourth Proportional to 149,455.70, 224,183.55 and 90,260.90

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Solution

The fourth proportional to 149,455.70, 224,183.55 and 90,260.90 is: 135,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,455.70 : 224,183.55 = 90,260.90 : x
  2. Step 2: Convert to fraction form
    149,455.70/224,183.55 = 90,260.90/x
  3. Step 3: Cross multiply
    149,455.70x = 224,183.55 × 90,260.90
  4. Step 4: Simplify right side
    149,455.70x = 20,235,008,988.20
  5. Step 5: Solve for x
    x = 20,235,008,988.20/149,455.70
  6. Step 6: Final answer
    x = 135,391.35

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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.