Finding the Fourth Proportional to 186,818.96, 257,815.85 and 106,258.08
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Solution
The fourth proportional to 186,818.96, 257,815.85 and 106,258.08 is: 146,639.39
Step by Step Solution
- Step 1: Write the proportion equation
186,818.96 : 257,815.85 = 106,258.08 : x - Step 2: Convert to fraction form
186,818.96/257,815.85 = 106,258.08/x - Step 3: Cross multiply
186,818.96x = 257,815.85 × 106,258.08 - Step 4: Simplify right side
186,818.96x = 27,395,016,683.28 - Step 5: Solve for x
x = 27,395,016,683.28/186,818.96 - Step 6: Final answer
x = 146,639.39
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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.