Finding the Fourth Proportional to 256,292.28, 353,681.94 and 141,578.82
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Solution
The fourth proportional to 256,292.28, 353,681.94 and 141,578.82 is: 195,377.99
Step by Step Solution
- Step 1: Write the proportion equation
256,292.28 : 353,681.94 = 141,578.82 : x - Step 2: Convert to fraction form
256,292.28/353,681.94 = 141,578.82/x - Step 3: Cross multiply
256,292.28x = 353,681.94 × 141,578.82 - Step 4: Simplify right side
256,292.28x = 50,073,871,720.51 - Step 5: Solve for x
x = 50,073,871,720.51/256,292.28 - Step 6: Final answer
x = 195,377.99
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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.