Finding the Fourth Proportional to 326,090.60, 489,135.90 and 201,501.80
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Solution
The fourth proportional to 326,090.60, 489,135.90 and 201,501.80 is: 302,252.70
Step by Step Solution
- Step 1: Write the proportion equation
326,090.60 : 489,135.90 = 201,501.80 : x - Step 2: Convert to fraction form
326,090.60/489,135.90 = 201,501.80/x - Step 3: Cross multiply
326,090.60x = 489,135.90 × 201,501.80 - Step 4: Simplify right side
326,090.60x = 98,561,764,294.62 - Step 5: Solve for x
x = 98,561,764,294.62/326,090.60 - Step 6: Final answer
x = 302,252.70
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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.