Finding the Fourth Proportional to 261,731.76, 361,414.36 and 253,268.07
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Solution
The fourth proportional to 261,731.76, 361,414.36 and 253,268.07 is: 349,727.20
Step by Step Solution
- Step 1: Write the proportion equation
261,731.76 : 361,414.36 = 253,268.07 : x - Step 2: Convert to fraction form
261,731.76/361,414.36 = 253,268.07/x - Step 3: Cross multiply
261,731.76x = 361,414.36 × 253,268.07 - Step 4: Simplify right side
261,731.76x = 91,534,714,964.13 - Step 5: Solve for x
x = 91,534,714,964.13/261,731.76 - Step 6: Final answer
x = 349,727.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.