Finding the Fourth Proportional to 311,971.70, 467,957.55 and 125,117.30
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Solution
The fourth proportional to 311,971.70, 467,957.55 and 125,117.30 is: 187,675.95
Step by Step Solution
- Step 1: Write the proportion equation
311,971.70 : 467,957.55 = 125,117.30 : x - Step 2: Convert to fraction form
311,971.70/467,957.55 = 125,117.30/x - Step 3: Cross multiply
311,971.70x = 467,957.55 × 125,117.30 - Step 4: Simplify right side
311,971.70x = 58,549,585,170.62 - Step 5: Solve for x
x = 58,549,585,170.62/311,971.70 - Step 6: Final answer
x = 187,675.95
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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.