Finding the Fourth Proportional to 320,983.13, 442,951.26 and 177,740.09
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Solution
The fourth proportional to 320,983.13, 442,951.26 and 177,740.09 is: 245,278.30
Step by Step Solution
- Step 1: Write the proportion equation
320,983.13 : 442,951.26 = 177,740.09 : x - Step 2: Convert to fraction form
320,983.13/442,951.26 = 177,740.09/x - Step 3: Cross multiply
320,983.13x = 442,951.26 × 177,740.09 - Step 4: Simplify right side
320,983.13x = 78,730,196,818.01 - Step 5: Solve for x
x = 78,730,196,818.01/320,983.13 - Step 6: Final answer
x = 245,278.30
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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.