Finding the Fourth Proportional to 218,717.93, 301,830.74 and 118,115.93
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Solution
The fourth proportional to 218,717.93, 301,830.74 and 118,115.93 is: 162,999.99
Step by Step Solution
- Step 1: Write the proportion equation
218,717.93 : 301,830.74 = 118,115.93 : x - Step 2: Convert to fraction form
218,717.93/301,830.74 = 118,115.93/x - Step 3: Cross multiply
218,717.93x = 301,830.74 × 118,115.93 - Step 4: Simplify right side
218,717.93x = 35,651,019,829.02 - Step 5: Solve for x
x = 35,651,019,829.02/218,717.93 - Step 6: Final answer
x = 162,999.99
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1.5x scale
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.