Finding the Fourth Proportional to 219,166.67, 302,500.37 and 128,551.84
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Solution
The fourth proportional to 219,166.67, 302,500.37 and 128,551.84 is: 177,431.08
Step by Step Solution
- Step 1: Write the proportion equation
219,166.67 : 302,500.37 = 128,551.84 : x - Step 2: Convert to fraction form
219,166.67/302,500.37 = 128,551.84/x - Step 3: Cross multiply
219,166.67x = 302,500.37 × 128,551.84 - Step 4: Simplify right side
219,166.67x = 38,886,978,729.31 - Step 5: Solve for x
x = 38,886,978,729.31/219,166.67 - Step 6: Final answer
x = 177,431.08
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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.