Finding the Fourth Proportional to 356,291.78, 491,690.62 and 203,326.92
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Solution
The fourth proportional to 356,291.78, 491,690.62 and 203,326.92 is: 280,595.70
Step by Step Solution
- Step 1: Write the proportion equation
356,291.78 : 491,690.62 = 203,326.92 : x - Step 2: Convert to fraction form
356,291.78/491,690.62 = 203,326.92/x - Step 3: Cross multiply
356,291.78x = 491,690.62 × 203,326.92 - Step 4: Simplify right side
356,291.78x = 99,973,939,611.65 - Step 5: Solve for x
x = 99,973,939,611.65/356,291.78 - Step 6: Final answer
x = 280,595.70
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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.