Finding the Fourth Proportional to 211,106.19, 291,326.45 and 115,612.05
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Solution
The fourth proportional to 211,106.19, 291,326.45 and 115,612.05 is: 159,544.58
Step by Step Solution
- Step 1: Write the proportion equation
211,106.19 : 291,326.45 = 115,612.05 : x - Step 2: Convert to fraction form
211,106.19/291,326.45 = 115,612.05/x - Step 3: Cross multiply
211,106.19x = 291,326.45 × 115,612.05 - Step 4: Simplify right side
211,106.19x = 33,680,847,525.66 - Step 5: Solve for x
x = 33,680,847,525.66/211,106.19 - Step 6: Final answer
x = 159,544.58
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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.