Finding the Fourth Proportional to 268,319.80, 402,479.70 and 120,863.80
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Solution
The fourth proportional to 268,319.80, 402,479.70 and 120,863.80 is: 181,295.70
Step by Step Solution
- Step 1: Write the proportion equation
268,319.80 : 402,479.70 = 120,863.80 : x - Step 2: Convert to fraction form
268,319.80/402,479.70 = 120,863.80/x - Step 3: Cross multiply
268,319.80x = 402,479.70 × 120,863.80 - Step 4: Simplify right side
268,319.80x = 48,645,225,964.86 - Step 5: Solve for x
x = 48,645,225,964.86/268,319.80 - Step 6: Final answer
x = 181,295.70
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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.