Finding the Fourth Proportional to 386,159.68, 532,878.48 and 225,040.96
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Solution
The fourth proportional to 386,159.68, 532,878.48 and 225,040.96 is: 310,543.77
Step by Step Solution
- Step 1: Write the proportion equation
386,159.68 : 532,878.48 = 225,040.96 : x - Step 2: Convert to fraction form
386,159.68/532,878.48 = 225,040.96/x - Step 3: Cross multiply
386,159.68x = 532,878.48 × 225,040.96 - Step 4: Simplify right side
386,159.68x = 119,919,484,702.54 - Step 5: Solve for x
x = 119,919,484,702.54/386,159.68 - Step 6: Final answer
x = 310,543.77
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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.