Finding the Fourth Proportional to 318,226.72, 439,137.84 and 174,992.80
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Solution
The fourth proportional to 318,226.72, 439,137.84 and 174,992.80 is: 241,481.80
Step by Step Solution
- Step 1: Write the proportion equation
318,226.72 : 439,137.84 = 174,992.80 : x - Step 2: Convert to fraction form
318,226.72/439,137.84 = 174,992.80/x - Step 3: Cross multiply
318,226.72x = 439,137.84 × 174,992.80 - Step 4: Simplify right side
318,226.72x = 76,845,960,207.55 - Step 5: Solve for x
x = 76,845,960,207.55/318,226.72 - Step 6: Final answer
x = 241,481.80
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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.