Finding the Fourth Proportional to 211,393.05, 291,681.32 and 125,336.13
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Solution
The fourth proportional to 211,393.05, 291,681.32 and 125,336.13 is: 172,939.50
Step by Step Solution
- Step 1: Write the proportion equation
211,393.05 : 291,681.32 = 125,336.13 : x - Step 2: Convert to fraction form
211,393.05/291,681.32 = 125,336.13/x - Step 3: Cross multiply
211,393.05x = 291,681.32 × 125,336.13 - Step 4: Simplify right side
211,393.05x = 36,558,207,842.09 - Step 5: Solve for x
x = 36,558,207,842.09/211,393.05 - Step 6: Final answer
x = 172,939.50
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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.