Finding the Fourth Proportional to 426,764.93, 640,463.09 and 202,125.74
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Solution
The fourth proportional to 426,764.93, 640,463.09 and 202,125.74 is: 303,338.12
Step by Step Solution
- Step 1: Write the proportion equation
426,764.93 : 640,463.09 = 202,125.74 : x - Step 2: Convert to fraction form
426,764.93/640,463.09 = 202,125.74/x - Step 3: Cross multiply
426,764.93x = 640,463.09 × 202,125.74 - Step 4: Simplify right side
426,764.93x = 129,454,071,795.99 - Step 5: Solve for x
x = 129,454,071,795.99/426,764.93 - Step 6: Final answer
x = 303,338.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.