Finding the Fourth Proportional to 290,953.77, 401,554.95 and 163,653.99
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Solution
The fourth proportional to 290,953.77, 401,554.95 and 163,653.99 is: 225,864.30
Step by Step Solution
- Step 1: Write the proportion equation
290,953.77 : 401,554.95 = 163,653.99 : x - Step 2: Convert to fraction form
290,953.77/401,554.95 = 163,653.99/x - Step 3: Cross multiply
290,953.77x = 401,554.95 × 163,653.99 - Step 4: Simplify right side
290,953.77x = 65,716,069,771.75 - Step 5: Solve for x
x = 65,716,069,771.75/290,953.77 - Step 6: Final answer
x = 225,864.30
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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.