Finding the Fourth Proportional to 326,083.40, 489,125.10 and 236,853.80
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Solution
The fourth proportional to 326,083.40, 489,125.10 and 236,853.80 is: 355,280.70
Step by Step Solution
- Step 1: Write the proportion equation
326,083.40 : 489,125.10 = 236,853.80 : x - Step 2: Convert to fraction form
326,083.40/489,125.10 = 236,853.80/x - Step 3: Cross multiply
326,083.40x = 489,125.10 × 236,853.80 - Step 4: Simplify right side
326,083.40x = 115,851,138,610.38 - Step 5: Solve for x
x = 115,851,138,610.38/326,083.40 - Step 6: Final answer
x = 355,280.70
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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.