Finding the Fourth Proportional to 426,733.79, 640,101.56 and 173,945.75
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Solution
The fourth proportional to 426,733.79, 640,101.56 and 173,945.75 is: 260,918.98
Step by Step Solution
- Step 1: Write the proportion equation
426,733.79 : 640,101.56 = 173,945.75 : x - Step 2: Convert to fraction form
426,733.79/640,101.56 = 173,945.75/x - Step 3: Cross multiply
426,733.79x = 640,101.56 × 173,945.75 - Step 4: Simplify right side
426,733.79x = 111,342,941,860.13 - Step 5: Solve for x
x = 111,342,941,860.13/426,733.79 - Step 6: Final answer
x = 260,918.98
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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.