Finding the Fourth Proportional to 218,904.75, 302,088.56 and 118,302.75
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Solution
The fourth proportional to 218,904.75, 302,088.56 and 118,302.75 is: 163,257.80
Step by Step Solution
- Step 1: Write the proportion equation
218,904.75 : 302,088.56 = 118,302.75 : x - Step 2: Convert to fraction form
218,904.75/302,088.56 = 118,302.75/x - Step 3: Cross multiply
218,904.75x = 302,088.56 × 118,302.75 - Step 4: Simplify right side
218,904.75x = 35,737,906,800.03 - Step 5: Solve for x
x = 35,737,906,800.03/218,904.75 - Step 6: Final answer
x = 163,257.80
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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.