Finding the Fourth Proportional to 354,306.13, 489,817.25 and 339,434.53
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Solution
The fourth proportional to 354,306.13, 489,817.25 and 339,434.53 is: 469,257.72
Step by Step Solution
- Step 1: Write the proportion equation
354,306.13 : 489,817.25 = 339,434.53 : x - Step 2: Convert to fraction form
354,306.13/489,817.25 = 339,434.53/x - Step 3: Cross multiply
354,306.13x = 489,817.25 × 339,434.53 - Step 4: Simplify right side
354,306.13x = 166,260,888,039.64 - Step 5: Solve for x
x = 166,260,888,039.64/354,306.13 - Step 6: Final answer
x = 469,257.72
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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.