Finding the Fourth Proportional to 250,699.19, 345,944.32 and 137,521.94
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Solution
The fourth proportional to 250,699.19, 345,944.32 and 137,521.94 is: 189,768.99
Step by Step Solution
- Step 1: Write the proportion equation
250,699.19 : 345,944.32 = 137,521.94 : x - Step 2: Convert to fraction form
250,699.19/345,944.32 = 137,521.94/x - Step 3: Cross multiply
250,699.19x = 345,944.32 × 137,521.94 - Step 4: Simplify right side
250,699.19x = 47,574,931,944.85 - Step 5: Solve for x
x = 47,574,931,944.85/250,699.19 - Step 6: Final answer
x = 189,768.99
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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.