Finding the Fourth Proportional to 319,792.31, 479,989.86 and 235,294.84
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Solution
The fourth proportional to 319,792.31, 479,989.86 and 235,294.84 is: 353,164.02
Step by Step Solution
- Step 1: Write the proportion equation
319,792.31 : 479,989.86 = 235,294.84 : x - Step 2: Convert to fraction form
319,792.31/479,989.86 = 235,294.84/x - Step 3: Cross multiply
319,792.31x = 479,989.86 × 235,294.84 - Step 4: Simplify right side
319,792.31x = 112,939,137,310.32 - Step 5: Solve for x
x = 112,939,137,310.32/319,792.31 - Step 6: Final answer
x = 353,164.02
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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.