Finding the Fourth Proportional to 318,054.96, 438,979.68 and 188,968.59
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Solution
The fourth proportional to 318,054.96, 438,979.68 and 188,968.59 is: 260,814.58
Step by Step Solution
- Step 1: Write the proportion equation
318,054.96 : 438,979.68 = 188,968.59 : x - Step 2: Convert to fraction form
318,054.96/438,979.68 = 188,968.59/x - Step 3: Cross multiply
318,054.96x = 438,979.68 × 188,968.59 - Step 4: Simplify right side
318,054.96x = 82,953,371,168.25 - Step 5: Solve for x
x = 82,953,371,168.25/318,054.96 - Step 6: Final answer
x = 260,814.58
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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.