Finding the Fourth Proportional to 291,039.48, 401,632.97 and 163,715.99
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Solution
The fourth proportional to 291,039.48, 401,632.97 and 163,715.99 is: 225,927.21
Step by Step Solution
- Step 1: Write the proportion equation
291,039.48 : 401,632.97 = 163,715.99 : x - Step 2: Convert to fraction form
291,039.48/401,632.97 = 163,715.99/x - Step 3: Cross multiply
291,039.48x = 401,632.97 × 163,715.99 - Step 4: Simplify right side
291,039.48x = 65,753,736,473.45 - Step 5: Solve for x
x = 65,753,736,473.45/291,039.48 - Step 6: Final answer
x = 225,927.21
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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.