Finding the Fourth Proportional to 211,404.24, 291,830.88 and 147,990.96
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Solution
The fourth proportional to 211,404.24, 291,830.88 and 147,990.96 is: 204,292.65
Step by Step Solution
- Step 1: Write the proportion equation
211,404.24 : 291,830.88 = 147,990.96 : x - Step 2: Convert to fraction form
211,404.24/291,830.88 = 147,990.96/x - Step 3: Cross multiply
211,404.24x = 291,830.88 × 147,990.96 - Step 4: Simplify right side
211,404.24x = 43,188,332,088.84 - Step 5: Solve for x
x = 43,188,332,088.84/211,404.24 - Step 6: Final answer
x = 204,292.65
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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.