Finding the Fourth Proportional to 217,284.80, 299,828.99 and 120,486.22
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Solution
The fourth proportional to 217,284.80, 299,828.99 and 120,486.22 is: 166,257.66
Step by Step Solution
- Step 1: Write the proportion equation
217,284.80 : 299,828.99 = 120,486.22 : x - Step 2: Convert to fraction form
217,284.80/299,828.99 = 120,486.22/x - Step 3: Cross multiply
217,284.80x = 299,828.99 × 120,486.22 - Step 4: Simplify right side
217,284.80x = 36,125,261,203.16 - Step 5: Solve for x
x = 36,125,261,203.16/217,284.80 - Step 6: Final answer
x = 166,257.66
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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.