Finding the Fourth Proportional to 653,343.21, 980,138.75 and 226,862.42
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Solution
The fourth proportional to 653,343.21, 980,138.75 and 226,862.42 is: 340,336.66
Step by Step Solution
- Step 1: Write the proportion equation
653,343.21 : 980,138.75 = 226,862.42 : x - Step 2: Convert to fraction form
653,343.21/980,138.75 = 226,862.42/x - Step 3: Cross multiply
653,343.21x = 980,138.75 × 226,862.42 - Step 4: Simplify right side
653,343.21x = 222,356,646,310.43 - Step 5: Solve for x
x = 222,356,646,310.43/653,343.21 - Step 6: Final answer
x = 340,336.66
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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.