Finding the Fourth Proportional to 185,800.89, 256,406.58 and 100,917.99
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Solution
The fourth proportional to 185,800.89, 256,406.58 and 100,917.99 is: 139,267.56
Step by Step Solution
- Step 1: Write the proportion equation
185,800.89 : 256,406.58 = 100,917.99 : x - Step 2: Convert to fraction form
185,800.89/256,406.58 = 100,917.99/x - Step 3: Cross multiply
185,800.89x = 256,406.58 × 100,917.99 - Step 4: Simplify right side
185,800.89x = 25,876,036,676.37 - Step 5: Solve for x
x = 25,876,036,676.37/185,800.89 - Step 6: Final answer
x = 139,267.56
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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.