Finding the Fourth Proportional to 219,310.80, 328,739.40 and 119,259.60
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Solution
The fourth proportional to 219,310.80, 328,739.40 and 119,259.60 is: 178,766.07
Step by Step Solution
- Step 1: Write the proportion equation
219,310.80 : 328,739.40 = 119,259.60 : x - Step 2: Convert to fraction form
219,310.80/328,739.40 = 119,259.60/x - Step 3: Cross multiply
219,310.80x = 328,739.40 × 119,259.60 - Step 4: Simplify right side
219,310.80x = 39,205,329,348.24 - Step 5: Solve for x
x = 39,205,329,348.24/219,310.80 - Step 6: Final answer
x = 178,766.07
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1.5x scale
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.