Finding the Fourth Proportional to 646,132.68, 969,198.80 and 172,805.75
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Solution
The fourth proportional to 646,132.68, 969,198.80 and 172,805.75 is: 259,208.56
Step by Step Solution
- Step 1: Write the proportion equation
646,132.68 : 969,198.80 = 172,805.75 : x - Step 2: Convert to fraction form
646,132.68/969,198.80 = 172,805.75/x - Step 3: Cross multiply
646,132.68x = 969,198.80 × 172,805.75 - Step 4: Simplify right side
646,132.68x = 167,483,119,823.08 - Step 5: Solve for x
x = 167,483,119,823.08/646,132.68 - Step 6: Final answer
x = 259,208.56
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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.