Finding the Fourth Proportional to 386,202.08, 532,979.92 and 216,490.72
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Solution
The fourth proportional to 386,202.08, 532,979.92 and 216,490.72 is: 298,768.99
Step by Step Solution
- Step 1: Write the proportion equation
386,202.08 : 532,979.92 = 216,490.72 : x - Step 2: Convert to fraction form
386,202.08/532,979.92 = 216,490.72/x - Step 3: Cross multiply
386,202.08x = 532,979.92 × 216,490.72 - Step 4: Simplify right side
386,202.08x = 115,385,206,626.34 - Step 5: Solve for x
x = 115,385,206,626.34/386,202.08 - Step 6: Final answer
x = 298,768.99
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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.