Finding the Fourth Proportional to 186,863.96, 257,878.28 and 106,289.42
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Solution
The fourth proportional to 186,863.96, 257,878.28 and 106,289.42 is: 146,682.81
Step by Step Solution
- Step 1: Write the proportion equation
186,863.96 : 257,878.28 = 106,289.42 : x - Step 2: Convert to fraction form
186,863.96/257,878.28 = 106,289.42/x - Step 3: Cross multiply
186,863.96x = 257,878.28 × 106,289.42 - Step 4: Simplify right side
186,863.96x = 27,409,731,788.13 - Step 5: Solve for x
x = 27,409,731,788.13/186,863.96 - Step 6: Final answer
x = 146,682.81
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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.