Finding the Fourth Proportional to 423,716.24, 635,564.64 and 213,297.68
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Solution
The fourth proportional to 423,716.24, 635,564.64 and 213,297.68 is: 319,941.63
Step by Step Solution
- Step 1: Write the proportion equation
423,716.24 : 635,564.64 = 213,297.68 : x - Step 2: Convert to fraction form
423,716.24/635,564.64 = 213,297.68/x - Step 3: Cross multiply
423,716.24x = 635,564.64 × 213,297.68 - Step 4: Simplify right side
423,716.24x = 135,564,463,202.04 - Step 5: Solve for x
x = 135,564,463,202.04/423,716.24 - Step 6: Final answer
x = 319,941.63
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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.