Finding the Fourth Proportional to 288,480.15, 432,800.21 and 120,079.80
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Solution
The fourth proportional to 288,480.15, 432,800.21 and 120,079.80 is: 180,152.99
Step by Step Solution
- Step 1: Write the proportion equation
288,480.15 : 432,800.21 = 120,079.80 : x - Step 2: Convert to fraction form
288,480.15/432,800.21 = 120,079.80/x - Step 3: Cross multiply
288,480.15x = 432,800.21 × 120,079.80 - Step 4: Simplify right side
288,480.15x = 51,970,562,956.96 - Step 5: Solve for x
x = 51,970,562,956.96/288,480.15 - Step 6: Final answer
x = 180,152.99
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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.