Finding the Fourth Proportional to 186,907.10, 257,930.06 and 115,258.46
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Solution
The fourth proportional to 186,907.10, 257,930.06 and 115,258.46 is: 159,055.60
Step by Step Solution
- Step 1: Write the proportion equation
186,907.10 : 257,930.06 = 115,258.46 : x - Step 2: Convert to fraction form
186,907.10/257,930.06 = 115,258.46/x - Step 3: Cross multiply
186,907.10x = 257,930.06 × 115,258.46 - Step 4: Simplify right side
186,907.10x = 29,728,621,503.31 - Step 5: Solve for x
x = 29,728,621,503.31/186,907.10 - Step 6: Final answer
x = 159,055.60
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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.