Finding the Fourth Proportional to 326,307.78, 489,556.44 and 115,962.12
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Solution
The fourth proportional to 326,307.78, 489,556.44 and 115,962.12 is: 173,976.86
Step by Step Solution
- Step 1: Write the proportion equation
326,307.78 : 489,556.44 = 115,962.12 : x - Step 2: Convert to fraction form
326,307.78/489,556.44 = 115,962.12/x - Step 3: Cross multiply
326,307.78x = 489,556.44 × 115,962.12 - Step 4: Simplify right side
326,307.78x = 56,770,002,642.05 - Step 5: Solve for x
x = 56,770,002,642.05/326,307.78 - Step 6: Final answer
x = 173,976.86
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1.5x scale
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.