Finding the Fourth Proportional to 330,423.75, 455,985.99 and 179,520.75
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Solution
The fourth proportional to 330,423.75, 455,985.99 and 179,520.75 is: 247,739.30
Step by Step Solution
- Step 1: Write the proportion equation
330,423.75 : 455,985.99 = 179,520.75 : x - Step 2: Convert to fraction form
330,423.75/455,985.99 = 179,520.75/x - Step 3: Cross multiply
330,423.75x = 455,985.99 × 179,520.75 - Step 4: Simplify right side
330,423.75x = 81,858,946,914.29 - Step 5: Solve for x
x = 81,858,946,914.29/330,423.75 - Step 6: Final answer
x = 247,739.30
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1.5x scale
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.