Finding the Fourth Proportional to 147,490.80, 221,351.40 and 68,614.80
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Solution
The fourth proportional to 147,490.80, 221,351.40 and 68,614.80 is: 102,975.79
Step by Step Solution
- Step 1: Write the proportion equation
147,490.80 : 221,351.40 = 68,614.80 : x - Step 2: Convert to fraction form
147,490.80/221,351.40 = 68,614.80/x - Step 3: Cross multiply
147,490.80x = 221,351.40 × 68,614.80 - Step 4: Simplify right side
147,490.80x = 15,187,982,040.72 - Step 5: Solve for x
x = 15,187,982,040.72/147,490.80 - Step 6: Final answer
x = 102,975.79
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1.5x scale
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.