Finding the Fourth Proportional to 199,638.84, 275,497.39 and 108,990.42
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Solution
The fourth proportional to 199,638.84, 275,497.39 and 108,990.42 is: 150,404.48
Step by Step Solution
- Step 1: Write the proportion equation
199,638.84 : 275,497.39 = 108,990.42 : x - Step 2: Convert to fraction form
199,638.84/275,497.39 = 108,990.42/x - Step 3: Cross multiply
199,638.84x = 275,497.39 × 108,990.42 - Step 4: Simplify right side
199,638.84x = 30,026,576,661.27 - Step 5: Solve for x
x = 30,026,576,661.27/199,638.84 - Step 6: Final answer
x = 150,404.48
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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.