Finding the Fourth Proportional to 211,547.08, 317,631.66 and 87,131.08
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Solution
The fourth proportional to 211,547.08, 317,631.66 and 87,131.08 is: 130,824.73
Step by Step Solution
- Step 1: Write the proportion equation
211,547.08 : 317,631.66 = 87,131.08 : x - Step 2: Convert to fraction form
211,547.08/317,631.66 = 87,131.08/x - Step 3: Cross multiply
211,547.08x = 317,631.66 × 87,131.08 - Step 4: Simplify right side
211,547.08x = 27,675,589,577.99 - Step 5: Solve for x
x = 27,675,589,577.99/211,547.08 - Step 6: Final answer
x = 130,824.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.