Finding the Fourth Proportional to 327,349.80, 491,024.70 and 187,122.60
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Solution
The fourth proportional to 327,349.80, 491,024.70 and 187,122.60 is: 280,683.90
Step by Step Solution
- Step 1: Write the proportion equation
327,349.80 : 491,024.70 = 187,122.60 : x - Step 2: Convert to fraction form
327,349.80/491,024.70 = 187,122.60/x - Step 3: Cross multiply
327,349.80x = 491,024.70 × 187,122.60 - Step 4: Simplify right side
327,349.80x = 91,881,818,528.22 - Step 5: Solve for x
x = 91,881,818,528.22/327,349.80 - Step 6: Final answer
x = 280,683.90
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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.