Finding the Fourth Proportional to 294,186.55, 405,964.62 and 163,356.09
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Solution
The fourth proportional to 294,186.55, 405,964.62 and 163,356.09 is: 225,424.29
Step by Step Solution
- Step 1: Write the proportion equation
294,186.55 : 405,964.62 = 163,356.09 : x - Step 2: Convert to fraction form
294,186.55/405,964.62 = 163,356.09/x - Step 3: Cross multiply
294,186.55x = 405,964.62 × 163,356.09 - Step 4: Simplify right side
294,186.55x = 66,316,793,001.54 - Step 5: Solve for x
x = 66,316,793,001.54/294,186.55 - Step 6: Final answer
x = 225,424.29
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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.