Finding the Fourth Proportional to 343,501.80, 515,252.70 and 320,173.80
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Solution
The fourth proportional to 343,501.80, 515,252.70 and 320,173.80 is: 480,260.70
Step by Step Solution
- Step 1: Write the proportion equation
343,501.80 : 515,252.70 = 320,173.80 : x - Step 2: Convert to fraction form
343,501.80/515,252.70 = 320,173.80/x - Step 3: Cross multiply
343,501.80x = 515,252.70 × 320,173.80 - Step 4: Simplify right side
343,501.80x = 164,970,414,919.26 - Step 5: Solve for x
x = 164,970,414,919.26/343,501.80 - Step 6: Final answer
x = 480,260.70
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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.