Finding the Fourth Proportional to 221,784.99, 306,062.96 and 126,291.71
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Solution
The fourth proportional to 221,784.99, 306,062.96 and 126,291.71 is: 174,282.37
Step by Step Solution
- Step 1: Write the proportion equation
221,784.99 : 306,062.96 = 126,291.71 : x - Step 2: Convert to fraction form
221,784.99/306,062.96 = 126,291.71/x - Step 3: Cross multiply
221,784.99x = 306,062.96 × 126,291.71 - Step 4: Simplify right side
221,784.99x = 38,653,212,998.16 - Step 5: Solve for x
x = 38,653,212,998.16/221,784.99 - Step 6: Final answer
x = 174,282.37
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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.