Finding the Fourth Proportional to 307,578.53, 424,668.25 and 198,946.19
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Solution
The fourth proportional to 307,578.53, 424,668.25 and 198,946.19 is: 274,681.50
Step by Step Solution
- Step 1: Write the proportion equation
307,578.53 : 424,668.25 = 198,946.19 : x - Step 2: Convert to fraction form
307,578.53/424,668.25 = 198,946.19/x - Step 3: Cross multiply
307,578.53x = 424,668.25 × 198,946.19 - Step 4: Simplify right side
307,578.53x = 84,486,131,661.82 - Step 5: Solve for x
x = 84,486,131,661.82/307,578.53 - Step 6: Final answer
x = 274,681.50
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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.