Finding the Fourth Proportional to 248,105.79, 342,378.68 and 140,685.63
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Solution
The fourth proportional to 248,105.79, 342,378.68 and 140,685.63 is: 194,142.02
Step by Step Solution
- Step 1: Write the proportion equation
248,105.79 : 342,378.68 = 140,685.63 : x - Step 2: Convert to fraction form
248,105.79/342,378.68 = 140,685.63/x - Step 3: Cross multiply
248,105.79x = 342,378.68 × 140,685.63 - Step 4: Simplify right side
248,105.79x = 48,167,759,590.94 - Step 5: Solve for x
x = 48,167,759,590.94/248,105.79 - Step 6: Final answer
x = 194,142.02
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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.