Finding the Fourth Proportional to 415,069.20, 622,603.80 and 204,679.80
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Solution
The fourth proportional to 415,069.20, 622,603.80 and 204,679.80 is: 307,019.70
Step by Step Solution
- Step 1: Write the proportion equation
415,069.20 : 622,603.80 = 204,679.80 : x - Step 2: Convert to fraction form
415,069.20/622,603.80 = 204,679.80/x - Step 3: Cross multiply
415,069.20x = 622,603.80 × 204,679.80 - Step 4: Simplify right side
415,069.20x = 127,434,421,263.24 - Step 5: Solve for x
x = 127,434,421,263.24/415,069.20 - Step 6: Final answer
x = 307,019.70
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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.