Finding the Fourth Proportional to 243,241.26, 335,669.76 and 135,813.12
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Solution
The fourth proportional to 243,241.26, 335,669.76 and 135,813.12 is: 187,420.33
Step by Step Solution
- Step 1: Write the proportion equation
243,241.26 : 335,669.76 = 135,813.12 : x - Step 2: Convert to fraction form
243,241.26/335,669.76 = 135,813.12/x - Step 3: Cross multiply
243,241.26x = 335,669.76 × 135,813.12 - Step 4: Simplify right side
243,241.26x = 45,588,357,395.25 - Step 5: Solve for x
x = 45,588,357,395.25/243,241.26 - Step 6: Final answer
x = 187,420.33
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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.