Finding the Fourth Proportional to 319,849.18, 441,388.91 and 176,610.71
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Solution
The fourth proportional to 319,849.18, 441,388.91 and 176,610.71 is: 243,721.15
Step by Step Solution
- Step 1: Write the proportion equation
319,849.18 : 441,388.91 = 176,610.71 : x - Step 2: Convert to fraction form
319,849.18/441,388.91 = 176,610.71/x - Step 3: Cross multiply
319,849.18x = 441,388.91 × 176,610.71 - Step 4: Simplify right side
319,849.18x = 77,954,010,326.23 - Step 5: Solve for x
x = 77,954,010,326.23/319,849.18 - Step 6: Final answer
x = 243,721.15
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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.