Finding the Fourth Proportional to 218,612.62, 301,706.93 and 127,963.09
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Solution
The fourth proportional to 218,612.62, 301,706.93 and 127,963.09 is: 176,601.65
Step by Step Solution
- Step 1: Write the proportion equation
218,612.62 : 301,706.93 = 127,963.09 : x - Step 2: Convert to fraction form
218,612.62/301,706.93 = 127,963.09/x - Step 3: Cross multiply
218,612.62x = 301,706.93 × 127,963.09 - Step 4: Simplify right side
218,612.62x = 38,607,348,888.86 - Step 5: Solve for x
x = 38,607,348,888.86/218,612.62 - Step 6: Final answer
x = 176,601.65
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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.