Finding the Fourth Proportional to 280,638.24, 420,960.96 and 93,649.74
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Solution
The fourth proportional to 280,638.24, 420,960.96 and 93,649.74 is: 140,475.81
Step by Step Solution
- Step 1: Write the proportion equation
280,638.24 : 420,960.96 = 93,649.74 : x - Step 2: Convert to fraction form
280,638.24/420,960.96 = 93,649.74/x - Step 3: Cross multiply
280,638.24x = 420,960.96 × 93,649.74 - Step 4: Simplify right side
280,638.24x = 39,422,884,454.15 - Step 5: Solve for x
x = 39,422,884,454.15/280,638.24 - Step 6: Final answer
x = 140,475.81
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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.