Finding the Fourth Proportional to 437,689.80, 656,534.70 and 142,201.80
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Solution
The fourth proportional to 437,689.80, 656,534.70 and 142,201.80 is: 213,302.70
Step by Step Solution
- Step 1: Write the proportion equation
437,689.80 : 656,534.70 = 142,201.80 : x - Step 2: Convert to fraction form
437,689.80/656,534.70 = 142,201.80/x - Step 3: Cross multiply
437,689.80x = 656,534.70 × 142,201.80 - Step 4: Simplify right side
437,689.80x = 93,360,416,102.46 - Step 5: Solve for x
x = 93,360,416,102.46/437,689.80 - Step 6: Final answer
x = 213,302.70
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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.