Finding the Fourth Proportional to 279,357.42, 385,245.24 and 187,683.84
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Solution
The fourth proportional to 279,357.42, 385,245.24 and 187,683.84 is: 258,823.65
Step by Step Solution
- Step 1: Write the proportion equation
279,357.42 : 385,245.24 = 187,683.84 : x - Step 2: Convert to fraction form
279,357.42/385,245.24 = 187,683.84/x - Step 3: Cross multiply
279,357.42x = 385,245.24 × 187,683.84 - Step 4: Simplify right side
279,357.42x = 72,304,305,984.92 - Step 5: Solve for x
x = 72,304,305,984.92/279,357.42 - Step 6: Final answer
x = 258,823.65
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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.