Finding the Fourth Proportional to 305,748.68, 421,925.01 and 169,779.08
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Solution
The fourth proportional to 305,748.68, 421,925.01 and 169,779.08 is: 234,290.59
Step by Step Solution
- Step 1: Write the proportion equation
305,748.68 : 421,925.01 = 169,779.08 : x - Step 2: Convert to fraction form
305,748.68/421,925.01 = 169,779.08/x - Step 3: Cross multiply
305,748.68x = 421,925.01 × 169,779.08 - Step 4: Simplify right side
305,748.68x = 71,634,040,026.79 - Step 5: Solve for x
x = 71,634,040,026.79/305,748.68 - Step 6: Final answer
x = 234,290.59
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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.