Finding the Fourth Proportional to 214,902.80, 296,497.96 and 128,844.08
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Solution
The fourth proportional to 214,902.80, 296,497.96 and 128,844.08 is: 177,764.12
Step by Step Solution
- Step 1: Write the proportion equation
214,902.80 : 296,497.96 = 128,844.08 : x - Step 2: Convert to fraction form
214,902.80/296,497.96 = 128,844.08/x - Step 3: Cross multiply
214,902.80x = 296,497.96 × 128,844.08 - Step 4: Simplify right side
214,902.80x = 38,202,006,878.08 - Step 5: Solve for x
x = 38,202,006,878.08/214,902.80 - Step 6: Final answer
x = 177,764.12
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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.