Finding the Fourth Proportional to 211,261.26, 291,547.64 and 115,767.12
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Solution
The fourth proportional to 211,261.26, 291,547.64 and 115,767.12 is: 159,762.52
Step by Step Solution
- Step 1: Write the proportion equation
211,261.26 : 291,547.64 = 115,767.12 : x - Step 2: Convert to fraction form
211,261.26/291,547.64 = 115,767.12/x - Step 3: Cross multiply
211,261.26x = 291,547.64 × 115,767.12 - Step 4: Simplify right side
211,261.26x = 33,751,630,625.60 - Step 5: Solve for x
x = 33,751,630,625.60/211,261.26 - Step 6: Final answer
x = 159,762.52
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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.