Finding the Fourth Proportional to 256,771.11, 354,337.74 and 142,056.18
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Solution
The fourth proportional to 256,771.11, 354,337.74 and 142,056.18 is: 196,033.99
Step by Step Solution
- Step 1: Write the proportion equation
256,771.11 : 354,337.74 = 142,056.18 : x - Step 2: Convert to fraction form
256,771.11/354,337.74 = 142,056.18/x - Step 3: Cross multiply
256,771.11x = 354,337.74 × 142,056.18 - Step 4: Simplify right side
256,771.11x = 50,335,865,774.23 - Step 5: Solve for x
x = 50,335,865,774.23/256,771.11 - Step 6: Final answer
x = 196,033.99
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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.