Finding the Fourth Proportional to 405,129.80, 607,208.70 and 168,350.60
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Solution
The fourth proportional to 405,129.80, 607,208.70 and 168,350.60 is: 252,323.94
Step by Step Solution
- Step 1: Write the proportion equation
405,129.80 : 607,208.70 = 168,350.60 : x - Step 2: Convert to fraction form
405,129.80/607,208.70 = 168,350.60/x - Step 3: Cross multiply
405,129.80x = 607,208.70 × 168,350.60 - Step 4: Simplify right side
405,129.80x = 102,223,948,970.22 - Step 5: Solve for x
x = 102,223,948,970.22/405,129.80 - Step 6: Final answer
x = 252,323.94
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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.