Finding the Fourth Proportional to 211,979.57, 292,548.12 and 121,364.06
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Solution
The fourth proportional to 211,979.57, 292,548.12 and 121,364.06 is: 167,491.74
Step by Step Solution
- Step 1: Write the proportion equation
211,979.57 : 292,548.12 = 121,364.06 : x - Step 2: Convert to fraction form
211,979.57/292,548.12 = 121,364.06/x - Step 3: Cross multiply
211,979.57x = 292,548.12 × 121,364.06 - Step 4: Simplify right side
211,979.57x = 35,504,827,588.57 - Step 5: Solve for x
x = 35,504,827,588.57/211,979.57 - Step 6: Final answer
x = 167,491.74
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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.