Finding the Fourth Proportional to 217,921.02, 300,714.84 and 122,443.62
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Solution
The fourth proportional to 217,921.02, 300,714.84 and 122,443.62 is: 168,963.11
Step by Step Solution
- Step 1: Write the proportion equation
217,921.02 : 300,714.84 = 122,443.62 : x - Step 2: Convert to fraction form
217,921.02/300,714.84 = 122,443.62/x - Step 3: Cross multiply
217,921.02x = 300,714.84 × 122,443.62 - Step 4: Simplify right side
217,921.02x = 36,820,613,597.32 - Step 5: Solve for x
x = 36,820,613,597.32/217,921.02 - Step 6: Final answer
x = 168,963.11
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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.