Finding the Fourth Proportional to 186,918.30, 257,938.26 and 106,338.24
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Solution
The fourth proportional to 186,918.30, 257,938.26 and 106,338.24 is: 146,741.65
Step by Step Solution
- Step 1: Write the proportion equation
186,918.30 : 257,938.26 = 106,338.24 : x - Step 2: Convert to fraction form
186,918.30/257,938.26 = 106,338.24/x - Step 3: Cross multiply
186,918.30x = 257,938.26 × 106,338.24 - Step 4: Simplify right side
186,918.30x = 27,428,700,597.06 - Step 5: Solve for x
x = 27,428,700,597.06/186,918.30 - Step 6: Final answer
x = 146,741.65
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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.