Finding the Fourth Proportional to 211,967.30, 292,531.15 and 121,351.69
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Solution
The fourth proportional to 211,967.30, 292,531.15 and 121,351.69 is: 167,474.65
Step by Step Solution
- Step 1: Write the proportion equation
211,967.30 : 292,531.15 = 121,351.69 : x - Step 2: Convert to fraction form
211,967.30/292,531.15 = 121,351.69/x - Step 3: Cross multiply
211,967.30x = 292,531.15 × 121,351.69 - Step 4: Simplify right side
211,967.30x = 35,499,149,430.14 - Step 5: Solve for x
x = 35,499,149,430.14/211,967.30 - Step 6: Final answer
x = 167,474.65
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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.