Finding the Fourth Proportional to 149,658.83, 206,475.07 and 115,214.09
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Solution
The fourth proportional to 149,658.83, 206,475.07 and 115,214.09 is: 158,953.78
Step by Step Solution
- Step 1: Write the proportion equation
149,658.83 : 206,475.07 = 115,214.09 : x - Step 2: Convert to fraction form
149,658.83/206,475.07 = 115,214.09/x - Step 3: Cross multiply
149,658.83x = 206,475.07 × 115,214.09 - Step 4: Simplify right side
149,658.83x = 23,788,835,977.33 - Step 5: Solve for x
x = 23,788,835,977.33/149,658.83 - Step 6: Final answer
x = 158,953.78
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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.