Finding the Fourth Proportional to 330,319.36, 455,868.80 and 187,104.96
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Solution
The fourth proportional to 330,319.36, 455,868.80 and 187,104.96 is: 258,220.75
Step by Step Solution
- Step 1: Write the proportion equation
330,319.36 : 455,868.80 = 187,104.96 : x - Step 2: Convert to fraction form
330,319.36/455,868.80 = 187,104.96/x - Step 3: Cross multiply
330,319.36x = 455,868.80 × 187,104.96 - Step 4: Simplify right side
330,319.36x = 85,295,313,589.25 - Step 5: Solve for x
x = 85,295,313,589.25/330,319.36 - Step 6: Final answer
x = 258,220.75
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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.