Finding the Fourth Proportional to 242,622.99, 334,815.21 and 135,190.74
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Solution
The fourth proportional to 242,622.99, 334,815.21 and 135,190.74 is: 186,560.70
Step by Step Solution
- Step 1: Write the proportion equation
242,622.99 : 334,815.21 = 135,190.74 : x - Step 2: Convert to fraction form
242,622.99/334,815.21 = 135,190.74/x - Step 3: Cross multiply
242,622.99x = 334,815.21 × 135,190.74 - Step 4: Simplify right side
242,622.99x = 45,263,916,003.16 - Step 5: Solve for x
x = 45,263,916,003.16/242,622.99 - Step 6: Final answer
x = 186,560.70
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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.