Finding the Fourth Proportional to 308,164.93, 425,259.45 and 172,199.99
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Solution
The fourth proportional to 308,164.93, 425,259.45 and 172,199.99 is: 237,631.43
Step by Step Solution
- Step 1: Write the proportion equation
308,164.93 : 425,259.45 = 172,199.99 : x - Step 2: Convert to fraction form
308,164.93/425,259.45 = 172,199.99/x - Step 3: Cross multiply
308,164.93x = 425,259.45 × 172,199.99 - Step 4: Simplify right side
308,164.93x = 73,229,673,374.09 - Step 5: Solve for x
x = 73,229,673,374.09/308,164.93 - Step 6: Final answer
x = 237,631.43
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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.