Finding the Fourth Proportional to 272,445.13, 408,683.07 and 82,911.68
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Solution
The fourth proportional to 272,445.13, 408,683.07 and 82,911.68 is: 124,372.20
Step by Step Solution
- Step 1: Write the proportion equation
272,445.13 : 408,683.07 = 82,911.68 : x - Step 2: Convert to fraction form
272,445.13/408,683.07 = 82,911.68/x - Step 3: Cross multiply
272,445.13x = 408,683.07 × 82,911.68 - Step 4: Simplify right side
272,445.13x = 33,884,599,410.40 - Step 5: Solve for x
x = 33,884,599,410.40/272,445.13 - Step 6: Final answer
x = 124,372.20
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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.