Finding the Fourth Proportional to 319,405.91, 479,441.16 and 235,261.08
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Solution
The fourth proportional to 319,405.91, 479,441.16 and 235,261.08 is: 353,136.38
Step by Step Solution
- Step 1: Write the proportion equation
319,405.91 : 479,441.16 = 235,261.08 : x - Step 2: Convert to fraction form
319,405.91/479,441.16 = 235,261.08/x - Step 3: Cross multiply
319,405.91x = 479,441.16 × 235,261.08 - Step 4: Simplify right side
319,405.91x = 112,793,845,098.05 - Step 5: Solve for x
x = 112,793,845,098.05/319,405.91 - Step 6: Final answer
x = 353,136.38
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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.