Finding the Fourth Proportional to 221,784.96, 306,062.94 and 126,291.66
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Solution
The fourth proportional to 221,784.96, 306,062.94 and 126,291.66 is: 174,282.32
Step by Step Solution
- Step 1: Write the proportion equation
221,784.96 : 306,062.94 = 126,291.66 : x - Step 2: Convert to fraction form
221,784.96/306,062.94 = 126,291.66/x - Step 3: Cross multiply
221,784.96x = 306,062.94 × 126,291.66 - Step 4: Simplify right side
221,784.96x = 38,653,196,757.08 - Step 5: Solve for x
x = 38,653,196,757.08/221,784.96 - Step 6: Final answer
x = 174,282.32
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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.