Finding the Fourth Proportional to 243,990.79, 336,703.97 and 136,560.78
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Solution
The fourth proportional to 243,990.79, 336,703.97 and 136,560.78 is: 188,452.02
Step by Step Solution
- Step 1: Write the proportion equation
243,990.79 : 336,703.97 = 136,560.78 : x - Step 2: Convert to fraction form
243,990.79/336,703.97 = 136,560.78/x - Step 3: Cross multiply
243,990.79x = 336,703.97 × 136,560.78 - Step 4: Simplify right side
243,990.79x = 45,980,557,113.70 - Step 5: Solve for x
x = 45,980,557,113.70/243,990.79 - Step 6: Final answer
x = 188,452.02
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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.