Finding the Fourth Proportional to 272,015.80, 408,023.70 and 161,423.80
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Solution
The fourth proportional to 272,015.80, 408,023.70 and 161,423.80 is: 242,135.70
Step by Step Solution
- Step 1: Write the proportion equation
272,015.80 : 408,023.70 = 161,423.80 : x - Step 2: Convert to fraction form
272,015.80/408,023.70 = 161,423.80/x - Step 3: Cross multiply
272,015.80x = 408,023.70 × 161,423.80 - Step 4: Simplify right side
272,015.80x = 65,864,736,144.06 - Step 5: Solve for x
x = 65,864,736,144.06/272,015.80 - Step 6: Final answer
x = 242,135.70
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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.