Finding the Fourth Proportional to 156,395.44, 215,949.94 and 144,454.42
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Solution
The fourth proportional to 156,395.44, 215,949.94 and 144,454.42 is: 199,461.85
Step by Step Solution
- Step 1: Write the proportion equation
156,395.44 : 215,949.94 = 144,454.42 : x - Step 2: Convert to fraction form
156,395.44/215,949.94 = 144,454.42/x - Step 3: Cross multiply
156,395.44x = 215,949.94 × 144,454.42 - Step 4: Simplify right side
156,395.44x = 31,194,923,331.73 - Step 5: Solve for x
x = 31,194,923,331.73/156,395.44 - Step 6: Final answer
x = 199,461.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.