Finding the Fourth Proportional to 211,060.11, 291,205.20 and 135,652.35
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Solution
The fourth proportional to 211,060.11, 291,205.20 and 135,652.35 is: 187,163.12
Step by Step Solution
- Step 1: Write the proportion equation
211,060.11 : 291,205.20 = 135,652.35 : x - Step 2: Convert to fraction form
211,060.11/291,205.20 = 135,652.35/x - Step 3: Cross multiply
211,060.11x = 291,205.20 × 135,652.35 - Step 4: Simplify right side
211,060.11x = 39,502,669,712.22 - Step 5: Solve for x
x = 39,502,669,712.22/211,060.11 - Step 6: Final answer
x = 187,163.12
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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.