Finding the Fourth Proportional to 383,472.15, 575,205.80 and 117,231.63
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Solution
The fourth proportional to 383,472.15, 575,205.80 and 117,231.63 is: 175,846.70
Step by Step Solution
- Step 1: Write the proportion equation
383,472.15 : 575,205.80 = 117,231.63 : x - Step 2: Convert to fraction form
383,472.15/575,205.80 = 117,231.63/x - Step 3: Cross multiply
383,472.15x = 575,205.80 × 117,231.63 - Step 4: Simplify right side
383,472.15x = 67,432,312,933.30 - Step 5: Solve for x
x = 67,432,312,933.30/383,472.15 - Step 6: Final answer
x = 175,846.70
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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.