Finding the Fourth Proportional to 213,178.60, 319,456.86 and 119,711.08
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Solution
The fourth proportional to 213,178.60, 319,456.86 and 119,711.08 is: 179,391.95
Step by Step Solution
- Step 1: Write the proportion equation
213,178.60 : 319,456.86 = 119,711.08 : x - Step 2: Convert to fraction form
213,178.60/319,456.86 = 119,711.08/x - Step 3: Cross multiply
213,178.60x = 319,456.86 × 119,711.08 - Step 4: Simplify right side
213,178.60x = 38,242,525,724.01 - Step 5: Solve for x
x = 38,242,525,724.01/213,178.60 - Step 6: Final answer
x = 179,391.95
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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.