Finding the Fourth Proportional to 326,442.42, 489,568.68 and 136,897.74
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Solution
The fourth proportional to 326,442.42, 489,568.68 and 136,897.74 is: 205,306.79
Step by Step Solution
- Step 1: Write the proportion equation
326,442.42 : 489,568.68 = 136,897.74 : x - Step 2: Convert to fraction form
326,442.42/489,568.68 = 136,897.74/x - Step 3: Cross multiply
326,442.42x = 489,568.68 × 136,897.74 - Step 4: Simplify right side
326,442.42x = 67,020,845,866.78 - Step 5: Solve for x
x = 67,020,845,866.78/326,442.42 - Step 6: Final answer
x = 205,306.79
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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.