Finding the Fourth Proportional to 173,915.80, 260,873.70 and 138,923.80
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Solution
The fourth proportional to 173,915.80, 260,873.70 and 138,923.80 is: 208,385.70
Step by Step Solution
- Step 1: Write the proportion equation
173,915.80 : 260,873.70 = 138,923.80 : x - Step 2: Convert to fraction form
173,915.80/260,873.70 = 138,923.80/x - Step 3: Cross multiply
173,915.80x = 260,873.70 × 138,923.80 - Step 4: Simplify right side
173,915.80x = 36,241,565,724.06 - Step 5: Solve for x
x = 36,241,565,724.06/173,915.80 - Step 6: Final answer
x = 208,385.70
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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.