Finding the Fourth Proportional to 438,322.80, 656,965.80 and 185,602.80
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Solution
The fourth proportional to 438,322.80, 656,965.80 and 185,602.80 is: 278,184.69
Step by Step Solution
- Step 1: Write the proportion equation
438,322.80 : 656,965.80 = 185,602.80 : x - Step 2: Convert to fraction form
438,322.80/656,965.80 = 185,602.80/x - Step 3: Cross multiply
438,322.80x = 656,965.80 × 185,602.80 - Step 4: Simplify right side
438,322.80x = 121,934,691,984.24 - Step 5: Solve for x
x = 121,934,691,984.24/438,322.80 - Step 6: Final answer
x = 278,184.69
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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.