Finding the Fourth Proportional to 331,663.20, 497,203.20 and 198,596.40
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Solution
The fourth proportional to 331,663.20, 497,203.20 and 198,596.40 is: 297,719.99
Step by Step Solution
- Step 1: Write the proportion equation
331,663.20 : 497,203.20 = 198,596.40 : x - Step 2: Convert to fraction form
331,663.20/497,203.20 = 198,596.40/x - Step 3: Cross multiply
331,663.20x = 497,203.20 × 198,596.40 - Step 4: Simplify right side
331,663.20x = 98,742,765,588.48 - Step 5: Solve for x
x = 98,742,765,588.48/331,663.20 - Step 6: Final answer
x = 297,719.99
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1.5x scale
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.