Finding the Fourth Proportional to 186,813.76, 257,825.28 and 106,253.44
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Solution
The fourth proportional to 186,813.76, 257,825.28 and 106,253.44 is: 146,642.43
Step by Step Solution
- Step 1: Write the proportion equation
186,813.76 : 257,825.28 = 106,253.44 : x - Step 2: Convert to fraction form
186,813.76/257,825.28 = 106,253.44/x - Step 3: Cross multiply
186,813.76x = 257,825.28 × 106,253.44 - Step 4: Simplify right side
186,813.76x = 27,394,822,918.96 - Step 5: Solve for x
x = 27,394,822,918.96/186,813.76 - Step 6: Final answer
x = 146,642.43
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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.