Finding the Fourth Proportional to 178,864.87, 246,779.69 and 107,218.75
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Solution
The fourth proportional to 178,864.87, 246,779.69 and 107,218.75 is: 147,929.61
Step by Step Solution
- Step 1: Write the proportion equation
178,864.87 : 246,779.69 = 107,218.75 : x - Step 2: Convert to fraction form
178,864.87/246,779.69 = 107,218.75/x - Step 3: Cross multiply
178,864.87x = 246,779.69 × 107,218.75 - Step 4: Simplify right side
178,864.87x = 26,459,409,887.19 - Step 5: Solve for x
x = 26,459,409,887.19/178,864.87 - Step 6: Final answer
x = 147,929.61
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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.