Finding the Fourth Proportional to 186,918.17, 257,938.02 and 106,338.15
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Solution
The fourth proportional to 186,918.17, 257,938.02 and 106,338.15 is: 146,741.50
Step by Step Solution
- Step 1: Write the proportion equation
186,918.17 : 257,938.02 = 106,338.15 : x - Step 2: Convert to fraction form
186,918.17/257,938.02 = 106,338.15/x - Step 3: Cross multiply
186,918.17x = 257,938.02 × 106,338.15 - Step 4: Simplify right side
186,918.17x = 27,428,651,861.46 - Step 5: Solve for x
x = 27,428,651,861.46/186,918.17 - Step 6: Final answer
x = 146,741.50
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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.