Finding the Fourth Proportional to 252,126.93, 347,935.16 and 138,949.68
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Solution
The fourth proportional to 252,126.93, 347,935.16 and 138,949.68 is: 191,750.55
Step by Step Solution
- Step 1: Write the proportion equation
252,126.93 : 347,935.16 = 138,949.68 : x - Step 2: Convert to fraction form
252,126.93/347,935.16 = 138,949.68/x - Step 3: Cross multiply
252,126.93x = 347,935.16 × 138,949.68 - Step 4: Simplify right side
252,126.93x = 48,345,478,448.00 - Step 5: Solve for x
x = 48,345,478,448.00/252,126.93 - Step 6: Final answer
x = 191,750.55
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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.