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Finding the Fourth Proportional to 220,305.75, 304,022.76 and 119,703.75

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Solution

The fourth proportional to 220,305.75, 304,022.76 and 119,703.75 is: 165,191.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,305.75 : 304,022.76 = 119,703.75 : x
  2. Step 2: Convert to fraction form
    220,305.75/304,022.76 = 119,703.75/x
  3. Step 3: Cross multiply
    220,305.75x = 304,022.76 × 119,703.75
  4. Step 4: Simplify right side
    220,305.75x = 36,392,664,457.35
  5. Step 5: Solve for x
    x = 36,392,664,457.35/220,305.75
  6. Step 6: Final answer
    x = 165,191.62

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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.