Finding the Fourth Proportional to 202,629.14, 279,628.55 and 111,985.08
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Solution
The fourth proportional to 202,629.14, 279,628.55 and 111,985.08 is: 154,539.60
Step by Step Solution
- Step 1: Write the proportion equation
202,629.14 : 279,628.55 = 111,985.08 : x - Step 2: Convert to fraction form
202,629.14/279,628.55 = 111,985.08/x - Step 3: Cross multiply
202,629.14x = 279,628.55 × 111,985.08 - Step 4: Simplify right side
202,629.14x = 31,314,225,542.03 - Step 5: Solve for x
x = 31,314,225,542.03/202,629.14 - Step 6: Final answer
x = 154,539.60
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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.