Finding the Fourth Proportional to 186,700.68, 279,788.58 and 81,298.62
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Solution
The fourth proportional to 186,700.68, 279,788.58 and 81,298.62 is: 121,833.65
Step by Step Solution
- Step 1: Write the proportion equation
186,700.68 : 279,788.58 = 81,298.62 : x - Step 2: Convert to fraction form
186,700.68/279,788.58 = 81,298.62/x - Step 3: Cross multiply
186,700.68x = 279,788.58 × 81,298.62 - Step 4: Simplify right side
186,700.68x = 22,746,425,445.76 - Step 5: Solve for x
x = 22,746,425,445.76/186,700.68 - Step 6: Final answer
x = 121,833.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.