Finding the Fourth Proportional to 211,059.40, 291,250.80 and 115,547.80
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Solution
The fourth proportional to 211,059.40, 291,250.80 and 115,547.80 is: 159,449.85
Step by Step Solution
- Step 1: Write the proportion equation
211,059.40 : 291,250.80 = 115,547.80 : x - Step 2: Convert to fraction form
211,059.40/291,250.80 = 115,547.80/x - Step 3: Cross multiply
211,059.40x = 291,250.80 × 115,547.80 - Step 4: Simplify right side
211,059.40x = 33,653,389,188.24 - Step 5: Solve for x
x = 33,653,389,188.24/211,059.40 - Step 6: Final answer
x = 159,449.85
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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.