Finding the Fourth Proportional to 212,727.68, 318,790.68 and 117,999.56
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Solution
The fourth proportional to 212,727.68, 318,790.68 and 117,999.56 is: 176,832.46
Step by Step Solution
- Step 1: Write the proportion equation
212,727.68 : 318,790.68 = 117,999.56 : x - Step 2: Convert to fraction form
212,727.68/318,790.68 = 117,999.56/x - Step 3: Cross multiply
212,727.68x = 318,790.68 × 117,999.56 - Step 4: Simplify right side
212,727.68x = 37,617,159,972.10 - Step 5: Solve for x
x = 37,617,159,972.10/212,727.68 - Step 6: Final answer
x = 176,832.46
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1.5x scale
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.