Finding the Fourth Proportional to 280,649.24, 420,977.46 and 93,660.74
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Solution
The fourth proportional to 280,649.24, 420,977.46 and 93,660.74 is: 140,492.31
Step by Step Solution
- Step 1: Write the proportion equation
280,649.24 : 420,977.46 = 93,660.74 : x - Step 2: Convert to fraction form
280,649.24/420,977.46 = 93,660.74/x - Step 3: Cross multiply
280,649.24x = 420,977.46 × 93,660.74 - Step 4: Simplify right side
280,649.24x = 39,429,060,426.92 - Step 5: Solve for x
x = 39,429,060,426.92/280,649.24 - Step 6: Final answer
x = 140,492.31
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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.