Finding the Fourth Proportional to 426,163.14, 638,795.28 and 141,777.51
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Solution
The fourth proportional to 426,163.14, 638,795.28 and 141,777.51 is: 212,516.75
Step by Step Solution
- Step 1: Write the proportion equation
426,163.14 : 638,795.28 = 141,777.51 : x - Step 2: Convert to fraction form
426,163.14/638,795.28 = 141,777.51/x - Step 3: Cross multiply
426,163.14x = 638,795.28 × 141,777.51 - Step 4: Simplify right side
426,163.14x = 90,566,804,198.15 - Step 5: Solve for x
x = 90,566,804,198.15/426,163.14 - Step 6: Final answer
x = 212,516.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.