Finding the Fourth Proportional to 218,618.99, 301,687.09 and 133,736.05
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Solution
The fourth proportional to 218,618.99, 301,687.09 and 133,736.05 is: 184,551.40
Step by Step Solution
- Step 1: Write the proportion equation
218,618.99 : 301,687.09 = 133,736.05 : x - Step 2: Convert to fraction form
218,618.99/301,687.09 = 133,736.05/x - Step 3: Cross multiply
218,618.99x = 301,687.09 × 133,736.05 - Step 4: Simplify right side
218,618.99x = 40,346,439,752.59 - Step 5: Solve for x
x = 40,346,439,752.59/218,618.99 - Step 6: Final answer
x = 184,551.40
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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.