Finding the Fourth Proportional to 291,279.60, 401,758.80 and 194,434.68
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Solution
The fourth proportional to 291,279.60, 401,758.80 and 194,434.68 is: 268,181.65
Step by Step Solution
- Step 1: Write the proportion equation
291,279.60 : 401,758.80 = 194,434.68 : x - Step 2: Convert to fraction form
291,279.60/401,758.80 = 194,434.68/x - Step 3: Cross multiply
291,279.60x = 401,758.80 × 194,434.68 - Step 4: Simplify right side
291,279.60x = 78,115,843,715.18 - Step 5: Solve for x
x = 78,115,843,715.18/291,279.60 - Step 6: Final answer
x = 268,181.65
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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.