Finding the Fourth Proportional to 415,806.96, 623,720.16 and 135,346.08
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Solution
The fourth proportional to 415,806.96, 623,720.16 and 135,346.08 is: 203,022.28
Step by Step Solution
- Step 1: Write the proportion equation
415,806.96 : 623,720.16 = 135,346.08 : x - Step 2: Convert to fraction form
415,806.96/623,720.16 = 135,346.08/x - Step 3: Cross multiply
415,806.96x = 623,720.16 × 135,346.08 - Step 4: Simplify right side
415,806.96x = 84,418,078,672.97 - Step 5: Solve for x
x = 84,418,078,672.97/415,806.96 - Step 6: Final answer
x = 203,022.28
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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.