Finding the Fourth Proportional to 437,557.20, 656,335.80 and 259,972.80
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Solution
The fourth proportional to 437,557.20, 656,335.80 and 259,972.80 is: 389,959.20
Step by Step Solution
- Step 1: Write the proportion equation
437,557.20 : 656,335.80 = 259,972.80 : x - Step 2: Convert to fraction form
437,557.20/656,335.80 = 259,972.80/x - Step 3: Cross multiply
437,557.20x = 656,335.80 × 259,972.80 - Step 4: Simplify right side
437,557.20x = 170,629,455,666.24 - Step 5: Solve for x
x = 170,629,455,666.24/437,557.20 - Step 6: Final answer
x = 389,959.20
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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.