Finding the Fourth Proportional to 391,122.48, 539,992.80 and 268,825.44
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Solution
The fourth proportional to 391,122.48, 539,992.80 and 268,825.44 is: 371,146.66
Step by Step Solution
- Step 1: Write the proportion equation
391,122.48 : 539,992.80 = 268,825.44 : x - Step 2: Convert to fraction form
391,122.48/539,992.80 = 268,825.44/x - Step 3: Cross multiply
391,122.48x = 539,992.80 × 268,825.44 - Step 4: Simplify right side
391,122.48x = 145,163,802,056.83 - Step 5: Solve for x
x = 145,163,802,056.83/391,122.48 - Step 6: Final answer
x = 371,146.66
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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.