Finding the Fourth Proportional to 280,636.99, 420,959.09 and 93,648.49
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Solution
The fourth proportional to 280,636.99, 420,959.09 and 93,648.49 is: 140,473.94
Step by Step Solution
- Step 1: Write the proportion equation
280,636.99 : 420,959.09 = 93,648.49 : x - Step 2: Convert to fraction form
280,636.99/420,959.09 = 93,648.49/x - Step 3: Cross multiply
280,636.99x = 420,959.09 × 93,648.49 - Step 4: Simplify right side
280,636.99x = 39,422,182,662.03 - Step 5: Solve for x
x = 39,422,182,662.03/280,636.99 - Step 6: Final answer
x = 140,473.94
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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.