Finding the Fourth Proportional to 320,220.24, 480,071.12 and 133,371.60
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Solution
The fourth proportional to 320,220.24, 480,071.12 and 133,371.60 is: 199,949.43
Step by Step Solution
- Step 1: Write the proportion equation
320,220.24 : 480,071.12 = 133,371.60 : x - Step 2: Convert to fraction form
320,220.24/480,071.12 = 133,371.60/x - Step 3: Cross multiply
320,220.24x = 480,071.12 × 133,371.60 - Step 4: Simplify right side
320,220.24x = 64,027,853,388.19 - Step 5: Solve for x
x = 64,027,853,388.19/320,220.24 - Step 6: Final answer
x = 199,949.43
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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.