Finding the Fourth Proportional to 248,358.13, 342,724.70 and 140,921.75
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Solution
The fourth proportional to 248,358.13, 342,724.70 and 140,921.75 is: 194,466.62
Step by Step Solution
- Step 1: Write the proportion equation
248,358.13 : 342,724.70 = 140,921.75 : x - Step 2: Convert to fraction form
248,358.13/342,724.70 = 140,921.75/x - Step 3: Cross multiply
248,358.13x = 342,724.70 × 140,921.75 - Step 4: Simplify right side
248,358.13x = 48,297,365,701.34 - Step 5: Solve for x
x = 48,297,365,701.34/248,358.13 - Step 6: Final answer
x = 194,466.62
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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.