Finding the Fourth Proportional to 211,362.90, 291,691.98 and 115,873.62
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Solution
The fourth proportional to 211,362.90, 291,691.98 and 115,873.62 is: 159,911.72
Step by Step Solution
- Step 1: Write the proportion equation
211,362.90 : 291,691.98 = 115,873.62 : x - Step 2: Convert to fraction form
211,362.90/291,691.98 = 115,873.62/x - Step 3: Cross multiply
211,362.90x = 291,691.98 × 115,873.62 - Step 4: Simplify right side
211,362.90x = 33,799,405,647.57 - Step 5: Solve for x
x = 33,799,405,647.57/211,362.90 - Step 6: Final answer
x = 159,911.72
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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.