Finding the Fourth Proportional to 355,317.99, 490,340.11 and 194,173.05
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Solution
The fourth proportional to 355,317.99, 490,340.11 and 194,173.05 is: 267,959.51
Step by Step Solution
- Step 1: Write the proportion equation
355,317.99 : 490,340.11 = 194,173.05 : x - Step 2: Convert to fraction form
355,317.99/490,340.11 = 194,173.05/x - Step 3: Cross multiply
355,317.99x = 490,340.11 × 194,173.05 - Step 4: Simplify right side
355,317.99x = 95,210,834,696.04 - Step 5: Solve for x
x = 95,210,834,696.04/355,317.99 - Step 6: Final answer
x = 267,959.51
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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.