Finding the Fourth Proportional to 326,203.74, 489,430.08 and 126,664.11
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Solution
The fourth proportional to 326,203.74, 489,430.08 and 126,664.11 is: 190,044.50
Step by Step Solution
- Step 1: Write the proportion equation
326,203.74 : 489,430.08 = 126,664.11 : x - Step 2: Convert to fraction form
326,203.74/489,430.08 = 126,664.11/x - Step 3: Cross multiply
326,203.74x = 489,430.08 × 126,664.11 - Step 4: Simplify right side
326,203.74x = 61,993,225,490.43 - Step 5: Solve for x
x = 61,993,225,490.43/326,203.74 - Step 6: Final answer
x = 190,044.50
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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.