Finding the Fourth Proportional to 383,421.91, 575,132.87 and 117,183.19
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Solution
The fourth proportional to 383,421.91, 575,132.87 and 117,183.19 is: 175,774.79
Step by Step Solution
- Step 1: Write the proportion equation
383,421.91 : 575,132.87 = 117,183.19 : x - Step 2: Convert to fraction form
383,421.91/575,132.87 = 117,183.19/x - Step 3: Cross multiply
383,421.91x = 575,132.87 × 117,183.19 - Step 4: Simplify right side
383,421.91x = 67,395,904,380.46 - Step 5: Solve for x
x = 67,395,904,380.46/383,421.91 - Step 6: Final answer
x = 175,774.79
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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.