Finding the Fourth Proportional to 289,794.35, 434,641.71 and 76,564.55
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Solution
The fourth proportional to 289,794.35, 434,641.71 and 76,564.55 is: 114,833.66
Step by Step Solution
- Step 1: Write the proportion equation
289,794.35 : 434,641.71 = 76,564.55 : x - Step 2: Convert to fraction form
289,794.35/434,641.71 = 76,564.55/x - Step 3: Cross multiply
289,794.35x = 434,641.71 × 76,564.55 - Step 4: Simplify right side
289,794.35x = 33,278,146,937.38 - Step 5: Solve for x
x = 33,278,146,937.38/289,794.35 - Step 6: Final answer
x = 114,833.66
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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.