Finding the Fourth Proportional to 380,736.68, 525,620.34 and 243,054.08
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Solution
The fourth proportional to 380,736.68, 525,620.34 and 243,054.08 is: 335,544.68
Step by Step Solution
- Step 1: Write the proportion equation
380,736.68 : 525,620.34 = 243,054.08 : x - Step 2: Convert to fraction form
380,736.68/525,620.34 = 243,054.08/x - Step 3: Cross multiply
380,736.68x = 525,620.34 × 243,054.08 - Step 4: Simplify right side
380,736.68x = 127,754,168,167.99 - Step 5: Solve for x
x = 127,754,168,167.99/380,736.68 - Step 6: Final answer
x = 335,544.68
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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.