Finding the Fourth Proportional to 355,315.84, 490,342.29 and 194,177.68
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Solution
The fourth proportional to 355,315.84, 490,342.29 and 194,177.68 is: 267,968.71
Step by Step Solution
- Step 1: Write the proportion equation
355,315.84 : 490,342.29 = 194,177.68 : x - Step 2: Convert to fraction form
355,315.84/490,342.29 = 194,177.68/x - Step 3: Cross multiply
355,315.84x = 490,342.29 × 194,177.68 - Step 4: Simplify right side
355,315.84x = 95,213,528,278.09 - Step 5: Solve for x
x = 95,213,528,278.09/355,315.84 - Step 6: Final answer
x = 267,968.71
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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.