Finding the Fourth Proportional to 218,993.63, 302,211.61 and 118,391.63
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Solution
The fourth proportional to 218,993.63, 302,211.61 and 118,391.63 is: 163,380.66
Step by Step Solution
- Step 1: Write the proportion equation
218,993.63 : 302,211.61 = 118,391.63 : x - Step 2: Convert to fraction form
218,993.63/302,211.61 = 118,391.63/x - Step 3: Cross multiply
218,993.63x = 302,211.61 × 118,391.63 - Step 4: Simplify right side
218,993.63x = 35,779,323,305.79 - Step 5: Solve for x
x = 35,779,323,305.79/218,993.63 - Step 6: Final answer
x = 163,380.66
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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.