Finding the Fourth Proportional to 211,769.28, 292,184.52 and 121,106.52
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Solution
The fourth proportional to 211,769.28, 292,184.52 and 121,106.52 is: 167,094.35
Step by Step Solution
- Step 1: Write the proportion equation
211,769.28 : 292,184.52 = 121,106.52 : x - Step 2: Convert to fraction form
211,769.28/292,184.52 = 121,106.52/x - Step 3: Cross multiply
211,769.28x = 292,184.52 × 121,106.52 - Step 4: Simplify right side
211,769.28x = 35,385,450,415.07 - Step 5: Solve for x
x = 35,385,450,415.07/211,769.28 - Step 6: Final answer
x = 167,094.35
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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.