Finding the Fourth Proportional to 355,903.48, 491,146.84 and 194,758.53
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Solution
The fourth proportional to 355,903.48, 491,146.84 and 194,758.53 is: 268,766.80
Step by Step Solution
- Step 1: Write the proportion equation
355,903.48 : 491,146.84 = 194,758.53 : x - Step 2: Convert to fraction form
355,903.48/491,146.84 = 194,758.53/x - Step 3: Cross multiply
355,903.48x = 491,146.84 × 194,758.53 - Step 4: Simplify right side
355,903.48x = 95,655,039,118.24 - Step 5: Solve for x
x = 95,655,039,118.24/355,903.48 - Step 6: Final answer
x = 268,766.80
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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.