Finding the Fourth Proportional to 438,197.60, 657,247.80 and 122,686.40
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Solution
The fourth proportional to 438,197.60, 657,247.80 and 122,686.40 is: 184,015.99
Step by Step Solution
- Step 1: Write the proportion equation
438,197.60 : 657,247.80 = 122,686.40 : x - Step 2: Convert to fraction form
438,197.60/657,247.80 = 122,686.40/x - Step 3: Cross multiply
438,197.60x = 657,247.80 × 122,686.40 - Step 4: Simplify right side
438,197.60x = 80,635,366,489.92 - Step 5: Solve for x
x = 80,635,366,489.92/438,197.60 - Step 6: Final answer
x = 184,015.99
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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.