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Finding the Fourth Proportional to 221,899.96, 306,221.96 and 119,925.12

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Solution

The fourth proportional to 221,899.96, 306,221.96 and 119,925.12 is: 165,496.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,899.96 : 306,221.96 = 119,925.12 : x
  2. Step 2: Convert to fraction form
    221,899.96/306,221.96 = 119,925.12/x
  3. Step 3: Cross multiply
    221,899.96x = 306,221.96 × 119,925.12
  4. Step 4: Simplify right side
    221,899.96x = 36,723,705,299.64
  5. Step 5: Solve for x
    x = 36,723,705,299.64/221,899.96
  6. Step 6: Final answer
    x = 165,496.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.