Finding the Fourth Proportional to 415,307.28, 622,431.18 and 202,125.81
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Solution
The fourth proportional to 415,307.28, 622,431.18 and 202,125.81 is: 302,930.90
Step by Step Solution
- Step 1: Write the proportion equation
415,307.28 : 622,431.18 = 202,125.81 : x - Step 2: Convert to fraction form
415,307.28/622,431.18 = 202,125.81/x - Step 3: Cross multiply
415,307.28x = 622,431.18 × 202,125.81 - Step 4: Simplify right side
415,307.28x = 125,809,406,426.76 - Step 5: Solve for x
x = 125,809,406,426.76/415,307.28 - Step 6: Final answer
x = 302,930.90
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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.