Finding the Fourth Proportional to 437,681.80, 656,522.70 and 142,193.80
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Solution
The fourth proportional to 437,681.80, 656,522.70 and 142,193.80 is: 213,290.70
Step by Step Solution
- Step 1: Write the proportion equation
437,681.80 : 656,522.70 = 142,193.80 : x - Step 2: Convert to fraction form
437,681.80/656,522.70 = 142,193.80/x - Step 3: Cross multiply
437,681.80x = 656,522.70 × 142,193.80 - Step 4: Simplify right side
437,681.80x = 93,353,457,499.26 - Step 5: Solve for x
x = 93,353,457,499.26/437,681.80 - Step 6: Final answer
x = 213,290.70
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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.