Finding the Fourth Proportional to 268,926.80, 403,390.20 and 194,277.20
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Solution
The fourth proportional to 268,926.80, 403,390.20 and 194,277.20 is: 291,415.80
Step by Step Solution
- Step 1: Write the proportion equation
268,926.80 : 403,390.20 = 194,277.20 : x - Step 2: Convert to fraction form
268,926.80/403,390.20 = 194,277.20/x - Step 3: Cross multiply
268,926.80x = 403,390.20 × 194,277.20 - Step 4: Simplify right side
268,926.80x = 78,369,518,563.44 - Step 5: Solve for x
x = 78,369,518,563.44/268,926.80 - Step 6: Final answer
x = 291,415.80
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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.