Finding the Fourth Proportional to 415,519.06, 623,056.80 and 215,638.18
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Solution
The fourth proportional to 415,519.06, 623,056.80 and 215,638.18 is: 323,342.17
Step by Step Solution
- Step 1: Write the proportion equation
415,519.06 : 623,056.80 = 215,638.18 : x - Step 2: Convert to fraction form
415,519.06/623,056.80 = 215,638.18/x - Step 3: Cross multiply
415,519.06x = 623,056.80 × 215,638.18 - Step 4: Simplify right side
415,519.06x = 134,354,834,388.62 - Step 5: Solve for x
x = 134,354,834,388.62/415,519.06 - Step 6: Final answer
x = 323,342.17
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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.