Finding the Fourth Proportional to 135,347.40, 202,445.10 and 121,408.20
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Solution
The fourth proportional to 135,347.40, 202,445.10 and 121,408.20 is: 181,595.62
Step by Step Solution
- Step 1: Write the proportion equation
135,347.40 : 202,445.10 = 121,408.20 : x - Step 2: Convert to fraction form
135,347.40/202,445.10 = 121,408.20/x - Step 3: Cross multiply
135,347.40x = 202,445.10 × 121,408.20 - Step 4: Simplify right side
135,347.40x = 24,578,495,189.82 - Step 5: Solve for x
x = 24,578,495,189.82/135,347.40 - Step 6: Final answer
x = 181,595.62
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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.