Finding the Fourth Proportional to 248,853.20, 343,416.99 and 141,423.30
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Solution
The fourth proportional to 248,853.20, 343,416.99 and 141,423.30 is: 195,163.92
Step by Step Solution
- Step 1: Write the proportion equation
248,853.20 : 343,416.99 = 141,423.30 : x - Step 2: Convert to fraction form
248,853.20/343,416.99 = 141,423.30/x - Step 3: Cross multiply
248,853.20x = 343,416.99 × 141,423.30 - Step 4: Simplify right side
248,853.20x = 48,567,164,001.87 - Step 5: Solve for x
x = 48,567,164,001.87/248,853.20 - Step 6: Final answer
x = 195,163.92
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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.