Finding the Fourth Proportional to 290,919.62, 401,011.62 and 266,512.70
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Solution
The fourth proportional to 290,919.62, 401,011.62 and 266,512.70 is: 367,368.45
Step by Step Solution
- Step 1: Write the proportion equation
290,919.62 : 401,011.62 = 266,512.70 : x - Step 2: Convert to fraction form
290,919.62/401,011.62 = 266,512.70/x - Step 3: Cross multiply
290,919.62x = 401,011.62 × 266,512.70 - Step 4: Simplify right side
290,919.62x = 106,874,689,577.57 - Step 5: Solve for x
x = 106,874,689,577.57/290,919.62 - Step 6: Final answer
x = 367,368.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.