Finding the Fourth Proportional to 282,711.80, 424,067.70 and 142,743.80
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Solution
The fourth proportional to 282,711.80, 424,067.70 and 142,743.80 is: 214,115.70
Step by Step Solution
- Step 1: Write the proportion equation
282,711.80 : 424,067.70 = 142,743.80 : x - Step 2: Convert to fraction form
282,711.80/424,067.70 = 142,743.80/x - Step 3: Cross multiply
282,711.80x = 424,067.70 × 142,743.80 - Step 4: Simplify right side
282,711.80x = 60,533,034,955.26 - Step 5: Solve for x
x = 60,533,034,955.26/282,711.80 - Step 6: Final answer
x = 214,115.70
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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.