Finding the Fourth Proportional to 305,964.99, 422,222.16 and 168,143.59
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Solution
The fourth proportional to 305,964.99, 422,222.16 and 168,143.59 is: 232,032.91
Step by Step Solution
- Step 1: Write the proportion equation
305,964.99 : 422,222.16 = 168,143.59 : x - Step 2: Convert to fraction form
305,964.99/422,222.16 = 168,143.59/x - Step 3: Cross multiply
305,964.99x = 422,222.16 × 168,143.59 - Step 4: Simplify right side
305,964.99x = 70,993,946,808.13 - Step 5: Solve for x
x = 70,993,946,808.13/305,964.99 - Step 6: Final answer
x = 232,032.91
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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.