Finding the Fourth Proportional to 358,139.23, 494,224.08 and 196,990.75
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Solution
The fourth proportional to 358,139.23, 494,224.08 and 196,990.75 is: 271,842.80
Step by Step Solution
- Step 1: Write the proportion equation
358,139.23 : 494,224.08 = 196,990.75 : x - Step 2: Convert to fraction form
358,139.23/494,224.08 = 196,990.75/x - Step 3: Cross multiply
358,139.23x = 494,224.08 × 196,990.75 - Step 4: Simplify right side
358,139.23x = 97,357,572,187.26 - Step 5: Solve for x
x = 97,357,572,187.26/358,139.23 - Step 6: Final answer
x = 271,842.80
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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.