Finding the Fourth Proportional to 361,348.20, 542,148.06 and 161,689.68
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Solution
The fourth proportional to 361,348.20, 542,148.06 and 161,689.68 is: 242,590.79
Step by Step Solution
- Step 1: Write the proportion equation
361,348.20 : 542,148.06 = 161,689.68 : x - Step 2: Convert to fraction form
361,348.20/542,148.06 = 161,689.68/x - Step 3: Cross multiply
361,348.20x = 542,148.06 × 161,689.68 - Step 4: Simplify right side
361,348.20x = 87,659,746,334.02 - Step 5: Solve for x
x = 87,659,746,334.02/361,348.20 - Step 6: Final answer
x = 242,590.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.