Finding the Fourth Proportional to 345,309.12, 476,412.48 and 201,967.68
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Solution
The fourth proportional to 345,309.12, 476,412.48 and 201,967.68 is: 278,648.66
Step by Step Solution
- Step 1: Write the proportion equation
345,309.12 : 476,412.48 = 201,967.68 : x - Step 2: Convert to fraction form
345,309.12/476,412.48 = 201,967.68/x - Step 3: Cross multiply
345,309.12x = 476,412.48 × 201,967.68 - Step 4: Simplify right side
345,309.12x = 96,219,923,308.65 - Step 5: Solve for x
x = 96,219,923,308.65/345,309.12 - Step 6: Final answer
x = 278,648.66
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1.5x scale
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.