Finding the Fourth Proportional to 397,412.64, 548,421.84 and 218,564.64
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Solution
The fourth proportional to 397,412.64, 548,421.84 and 218,564.64 is: 301,615.02
Step by Step Solution
- Step 1: Write the proportion equation
397,412.64 : 548,421.84 = 218,564.64 : x - Step 2: Convert to fraction form
397,412.64/548,421.84 = 218,564.64/x - Step 3: Cross multiply
397,412.64x = 548,421.84 × 218,564.64 - Step 4: Simplify right side
397,412.64x = 119,865,622,027.74 - Step 5: Solve for x
x = 119,865,622,027.74/397,412.64 - Step 6: Final answer
x = 301,615.02
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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.