Finding the Fourth Proportional to 319,663.14, 441,138.20 and 176,420.12
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Solution
The fourth proportional to 319,663.14, 441,138.20 and 176,420.12 is: 243,461.45
Step by Step Solution
- Step 1: Write the proportion equation
319,663.14 : 441,138.20 = 176,420.12 : x - Step 2: Convert to fraction form
319,663.14/441,138.20 = 176,420.12/x - Step 3: Cross multiply
319,663.14x = 441,138.20 × 176,420.12 - Step 4: Simplify right side
319,663.14x = 77,825,651,092.79 - Step 5: Solve for x
x = 77,825,651,092.79/319,663.14 - Step 6: Final answer
x = 243,461.45
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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.