Finding the Fourth Proportional to 415,959.83, 623,939.75 and 135,477.08
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Solution
The fourth proportional to 415,959.83, 623,939.75 and 135,477.08 is: 203,215.61
Step by Step Solution
- Step 1: Write the proportion equation
415,959.83 : 623,939.75 = 135,477.08 : x - Step 2: Convert to fraction form
415,959.83/623,939.75 = 135,477.08/x - Step 3: Cross multiply
415,959.83x = 623,939.75 × 135,477.08 - Step 4: Simplify right side
415,959.83x = 84,529,531,628.85 - Step 5: Solve for x
x = 84,529,531,628.85/415,959.83 - Step 6: Final answer
x = 203,215.61
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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.