Finding the Fourth Proportional to 342,408.88, 512,881.80 and 278,077.08
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Solution
The fourth proportional to 342,408.88, 512,881.80 and 278,077.08 is: 416,521.54
Step by Step Solution
- Step 1: Write the proportion equation
342,408.88 : 512,881.80 = 278,077.08 : x - Step 2: Convert to fraction form
342,408.88/512,881.80 = 278,077.08/x - Step 3: Cross multiply
342,408.88x = 512,881.80 × 278,077.08 - Step 4: Simplify right side
342,408.88x = 142,620,673,329.14 - Step 5: Solve for x
x = 142,620,673,329.14/342,408.88 - Step 6: Final answer
x = 416,521.54
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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.