Finding the Fourth Proportional to 415,391.18, 573,431.19 and 243,285.26
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Solution
The fourth proportional to 415,391.18, 573,431.19 and 243,285.26 is: 335,845.73
Step by Step Solution
- Step 1: Write the proportion equation
415,391.18 : 573,431.19 = 243,285.26 : x - Step 2: Convert to fraction form
415,391.18/573,431.19 = 243,285.26/x - Step 3: Cross multiply
415,391.18x = 573,431.19 × 243,285.26 - Step 4: Simplify right side
415,391.18x = 139,507,356,151.26 - Step 5: Solve for x
x = 139,507,356,151.26/415,391.18 - Step 6: Final answer
x = 335,845.73
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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.