Finding the Fourth Proportional to 216,029.20, 324,043.80 and 207,281.20
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Solution
The fourth proportional to 216,029.20, 324,043.80 and 207,281.20 is: 310,921.80
Step by Step Solution
- Step 1: Write the proportion equation
216,029.20 : 324,043.80 = 207,281.20 : x - Step 2: Convert to fraction form
216,029.20/324,043.80 = 207,281.20/x - Step 3: Cross multiply
216,029.20x = 324,043.80 × 207,281.20 - Step 4: Simplify right side
216,029.20x = 67,168,187,716.56 - Step 5: Solve for x
x = 67,168,187,716.56/216,029.20 - Step 6: Final answer
x = 310,921.80
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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.