Finding the Fourth Proportional to 221,284.74, 305,372.39 and 120,682.74
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Solution
The fourth proportional to 221,284.74, 305,372.39 and 120,682.74 is: 166,541.88
Step by Step Solution
- Step 1: Write the proportion equation
221,284.74 : 305,372.39 = 120,682.74 : x - Step 2: Convert to fraction form
221,284.74/305,372.39 = 120,682.74/x - Step 3: Cross multiply
221,284.74x = 305,372.39 × 120,682.74 - Step 4: Simplify right side
221,284.74x = 36,853,176,142.13 - Step 5: Solve for x
x = 36,853,176,142.13/221,284.74 - Step 6: Final answer
x = 166,541.88
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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.