Finding the Fourth Proportional to 280,950.21, 387,636.57 and 160,088.91
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Solution
The fourth proportional to 280,950.21, 387,636.57 and 160,088.91 is: 220,880.12
Step by Step Solution
- Step 1: Write the proportion equation
280,950.21 : 387,636.57 = 160,088.91 : x - Step 2: Convert to fraction form
280,950.21/387,636.57 = 160,088.91/x - Step 3: Cross multiply
280,950.21x = 387,636.57 × 160,088.91 - Step 4: Simplify right side
280,950.21x = 62,056,315,967.44 - Step 5: Solve for x
x = 62,056,315,967.44/280,950.21 - Step 6: Final answer
x = 220,880.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.