Finding the Fourth Proportional to 319,557.22, 440,998.18 and 176,326.48
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Solution
The fourth proportional to 319,557.22, 440,998.18 and 176,326.48 is: 243,335.63
Step by Step Solution
- Step 1: Write the proportion equation
319,557.22 : 440,998.18 = 176,326.48 : x - Step 2: Convert to fraction form
319,557.22/440,998.18 = 176,326.48/x - Step 3: Cross multiply
319,557.22x = 440,998.18 × 176,326.48 - Step 4: Simplify right side
319,557.22x = 77,759,656,765.81 - Step 5: Solve for x
x = 77,759,656,765.81/319,557.22 - Step 6: Final answer
x = 243,335.63
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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.