Finding the Fourth Proportional to 299,778.76, 413,689.71 and 163,809.80
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Solution
The fourth proportional to 299,778.76, 413,689.71 and 163,809.80 is: 226,054.80
Step by Step Solution
- Step 1: Write the proportion equation
299,778.76 : 413,689.71 = 163,809.80 : x - Step 2: Convert to fraction form
299,778.76/413,689.71 = 163,809.80/x - Step 3: Cross multiply
299,778.76x = 413,689.71 × 163,809.80 - Step 4: Simplify right side
299,778.76x = 67,766,428,657.16 - Step 5: Solve for x
x = 67,766,428,657.16/299,778.76 - Step 6: Final answer
x = 226,054.80
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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.