Finding the Fourth Proportional to 173,911.80, 260,867.70 and 138,919.80
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Solution
The fourth proportional to 173,911.80, 260,867.70 and 138,919.80 is: 208,379.70
Step by Step Solution
- Step 1: Write the proportion equation
173,911.80 : 260,867.70 = 138,919.80 : x - Step 2: Convert to fraction form
173,911.80/260,867.70 = 138,919.80/x - Step 3: Cross multiply
173,911.80x = 260,867.70 × 138,919.80 - Step 4: Simplify right side
173,911.80x = 36,239,688,710.46 - Step 5: Solve for x
x = 36,239,688,710.46/173,911.80 - Step 6: Final answer
x = 208,379.70
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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.