Finding the Fourth Proportional to 221,451.30, 332,176.95 and 220,139.10
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Solution
The fourth proportional to 221,451.30, 332,176.95 and 220,139.10 is: 330,208.65
Step by Step Solution
- Step 1: Write the proportion equation
221,451.30 : 332,176.95 = 220,139.10 : x - Step 2: Convert to fraction form
221,451.30/332,176.95 = 220,139.10/x - Step 3: Cross multiply
221,451.30x = 332,176.95 × 220,139.10 - Step 4: Simplify right side
221,451.30x = 73,125,134,813.75 - Step 5: Solve for x
x = 73,125,134,813.75/221,451.30 - Step 6: Final answer
x = 330,208.65
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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.