Finding the Fourth Proportional to 186,907.12, 257,930.06 and 115,258.48
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Solution
The fourth proportional to 186,907.12, 257,930.06 and 115,258.48 is: 159,055.61
Step by Step Solution
- Step 1: Write the proportion equation
186,907.12 : 257,930.06 = 115,258.48 : x - Step 2: Convert to fraction form
186,907.12/257,930.06 = 115,258.48/x - Step 3: Cross multiply
186,907.12x = 257,930.06 × 115,258.48 - Step 4: Simplify right side
186,907.12x = 29,728,626,661.91 - Step 5: Solve for x
x = 29,728,626,661.91/186,907.12 - Step 6: Final answer
x = 159,055.61
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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.