Finding the Fourth Proportional to 326,432.99, 489,671.98 and 136,702.32
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Solution
The fourth proportional to 326,432.99, 489,671.98 and 136,702.32 is: 205,062.90
Step by Step Solution
- Step 1: Write the proportion equation
326,432.99 : 489,671.98 = 136,702.32 : x - Step 2: Convert to fraction form
326,432.99/489,671.98 = 136,702.32/x - Step 3: Cross multiply
326,432.99x = 489,671.98 × 136,702.32 - Step 4: Simplify right side
326,432.99x = 66,939,295,704.99 - Step 5: Solve for x
x = 66,939,295,704.99/326,432.99 - Step 6: Final answer
x = 205,062.90
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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.