Finding the Fourth Proportional to 199,997.24, 276,065.64 and 115,148.12
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Solution
The fourth proportional to 199,997.24, 276,065.64 and 115,148.12 is: 158,944.39
Step by Step Solution
- Step 1: Write the proportion equation
199,997.24 : 276,065.64 = 115,148.12 : x - Step 2: Convert to fraction form
199,997.24/276,065.64 = 115,148.12/x - Step 3: Cross multiply
199,997.24x = 276,065.64 × 115,148.12 - Step 4: Simplify right side
199,997.24x = 31,788,438,062.27 - Step 5: Solve for x
x = 31,788,438,062.27/199,997.24 - Step 6: Final answer
x = 158,944.39
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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.