Finding the Fourth Proportional to 438,901.76, 658,221.41 and 228,424.88
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Solution
The fourth proportional to 438,901.76, 658,221.41 and 228,424.88 is: 342,569.02
Step by Step Solution
- Step 1: Write the proportion equation
438,901.76 : 658,221.41 = 228,424.88 : x - Step 2: Convert to fraction form
438,901.76/658,221.41 = 228,424.88/x - Step 3: Cross multiply
438,901.76x = 658,221.41 × 228,424.88 - Step 4: Simplify right side
438,901.76x = 150,354,143,301.57 - Step 5: Solve for x
x = 150,354,143,301.57/438,901.76 - Step 6: Final answer
x = 342,569.02
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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.