Finding the Fourth Proportional to 326,603.54, 489,962.72 and 149,128.49
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Solution
The fourth proportional to 326,603.54, 489,962.72 and 149,128.49 is: 223,718.95
Step by Step Solution
- Step 1: Write the proportion equation
326,603.54 : 489,962.72 = 149,128.49 : x - Step 2: Convert to fraction form
326,603.54/489,962.72 = 149,128.49/x - Step 3: Cross multiply
326,603.54x = 489,962.72 × 149,128.49 - Step 4: Simplify right side
326,603.54x = 73,067,402,187.62 - Step 5: Solve for x
x = 73,067,402,187.62/326,603.54 - Step 6: Final answer
x = 223,718.95
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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.