Finding the Fourth Proportional to 355,487.24, 490,578.24 and 212,259.80
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Solution
The fourth proportional to 355,487.24, 490,578.24 and 212,259.80 is: 292,922.02
Step by Step Solution
- Step 1: Write the proportion equation
355,487.24 : 490,578.24 = 212,259.80 : x - Step 2: Convert to fraction form
355,487.24/490,578.24 = 212,259.80/x - Step 3: Cross multiply
355,487.24x = 490,578.24 × 212,259.80 - Step 4: Simplify right side
355,487.24x = 104,130,039,106.75 - Step 5: Solve for x
x = 104,130,039,106.75/355,487.24 - Step 6: Final answer
x = 292,922.02
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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.