Finding the Fourth Proportional to 218,823.75, 301,976.79 and 118,221.75
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Solution
The fourth proportional to 218,823.75, 301,976.79 and 118,221.75 is: 163,146.02
Step by Step Solution
- Step 1: Write the proportion equation
218,823.75 : 301,976.79 = 118,221.75 : x - Step 2: Convert to fraction form
218,823.75/301,976.79 = 118,221.75/x - Step 3: Cross multiply
218,823.75x = 301,976.79 × 118,221.75 - Step 4: Simplify right side
218,823.75x = 35,700,224,573.18 - Step 5: Solve for x
x = 35,700,224,573.18/218,823.75 - Step 6: Final answer
x = 163,146.02
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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.