Finding the Fourth Proportional to 385,347.97, 578,077.33 and 119,129.25
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Solution
The fourth proportional to 385,347.97, 578,077.33 and 119,129.25 is: 178,710.99
Step by Step Solution
- Step 1: Write the proportion equation
385,347.97 : 578,077.33 = 119,129.25 : x - Step 2: Convert to fraction form
385,347.97/578,077.33 = 119,129.25/x - Step 3: Cross multiply
385,347.97x = 578,077.33 × 119,129.25 - Step 4: Simplify right side
385,347.97x = 68,865,918,764.90 - Step 5: Solve for x
x = 68,865,918,764.90/385,347.97 - Step 6: Final answer
x = 178,710.99
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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.