Finding the Fourth Proportional to 279,793.62, 386,115.21 and 152,469.18
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Solution
The fourth proportional to 279,793.62, 386,115.21 and 152,469.18 is: 210,407.48
Step by Step Solution
- Step 1: Write the proportion equation
279,793.62 : 386,115.21 = 152,469.18 : x - Step 2: Convert to fraction form
279,793.62/386,115.21 = 152,469.18/x - Step 3: Cross multiply
279,793.62x = 386,115.21 × 152,469.18 - Step 4: Simplify right side
279,793.62x = 58,870,669,454.23 - Step 5: Solve for x
x = 58,870,669,454.23/279,793.62 - Step 6: Final answer
x = 210,407.48
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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.