Finding the Fourth Proportional to 405,605.61, 608,361.93 and 106,115.09
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Solution
The fourth proportional to 405,605.61, 608,361.93 and 106,115.09 is: 159,160.47
Step by Step Solution
- Step 1: Write the proportion equation
405,605.61 : 608,361.93 = 106,115.09 : x - Step 2: Convert to fraction form
405,605.61/608,361.93 = 106,115.09/x - Step 3: Cross multiply
405,605.61x = 608,361.93 × 106,115.09 - Step 4: Simplify right side
405,605.61x = 64,556,380,954.52 - Step 5: Solve for x
x = 64,556,380,954.52/405,605.61 - Step 6: Final answer
x = 159,160.47
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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.