Finding the Fourth Proportional to 186,788.08, 257,822.76 and 130,217.68
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Solution
The fourth proportional to 186,788.08, 257,822.76 and 130,217.68 is: 179,738.89
Step by Step Solution
- Step 1: Write the proportion equation
186,788.08 : 257,822.76 = 130,217.68 : x - Step 2: Convert to fraction form
186,788.08/257,822.76 = 130,217.68/x - Step 3: Cross multiply
186,788.08x = 257,822.76 × 130,217.68 - Step 4: Simplify right side
186,788.08x = 33,573,081,658.40 - Step 5: Solve for x
x = 33,573,081,658.40/186,788.08 - Step 6: Final answer
x = 179,738.89
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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.