Finding the Fourth Proportional to 285,117.42, 427,551.57 and 135,400.62
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Solution
The fourth proportional to 285,117.42, 427,551.57 and 135,400.62 is: 203,041.78
Step by Step Solution
- Step 1: Write the proportion equation
285,117.42 : 427,551.57 = 135,400.62 : x - Step 2: Convert to fraction form
285,117.42/427,551.57 = 135,400.62/x - Step 3: Cross multiply
285,117.42x = 427,551.57 × 135,400.62 - Step 4: Simplify right side
285,117.42x = 57,890,747,659.97 - Step 5: Solve for x
x = 57,890,747,659.97/285,117.42 - Step 6: Final answer
x = 203,041.78
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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.