Finding the Fourth Proportional to 215,764.05, 323,421.49 and 120,855.07
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Solution
The fourth proportional to 215,764.05, 323,421.49 and 120,855.07 is: 181,156.81
Step by Step Solution
- Step 1: Write the proportion equation
215,764.05 : 323,421.49 = 120,855.07 : x - Step 2: Convert to fraction form
215,764.05/323,421.49 = 120,855.07/x - Step 3: Cross multiply
215,764.05x = 323,421.49 × 120,855.07 - Step 4: Simplify right side
215,764.05x = 39,087,127,368.80 - Step 5: Solve for x
x = 39,087,127,368.80/215,764.05 - Step 6: Final answer
x = 181,156.81
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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.