Finding the Fourth Proportional to 415,958.83, 623,938.25 and 135,476.08
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Solution
The fourth proportional to 415,958.83, 623,938.25 and 135,476.08 is: 203,214.12
Step by Step Solution
- Step 1: Write the proportion equation
415,958.83 : 623,938.25 = 135,476.08 : x - Step 2: Convert to fraction form
415,958.83/623,938.25 = 135,476.08/x - Step 3: Cross multiply
415,958.83x = 623,938.25 × 135,476.08 - Step 4: Simplify right side
415,958.83x = 84,528,708,272.06 - Step 5: Solve for x
x = 84,528,708,272.06/415,958.83 - Step 6: Final answer
x = 203,214.12
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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.