Finding the Fourth Proportional to 311,590.64, 467,199.18 and 142,899.68
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Solution
The fourth proportional to 311,590.64, 467,199.18 and 142,899.68 is: 214,263.86
Step by Step Solution
- Step 1: Write the proportion equation
311,590.64 : 467,199.18 = 142,899.68 : x - Step 2: Convert to fraction form
311,590.64/467,199.18 = 142,899.68/x - Step 3: Cross multiply
311,590.64x = 467,199.18 × 142,899.68 - Step 4: Simplify right side
311,590.64x = 66,762,613,318.26 - Step 5: Solve for x
x = 66,762,613,318.26/311,590.64 - Step 6: Final answer
x = 214,263.86
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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.