Finding the Fourth Proportional to 355,492.74, 490,560.12 and 194,315.70
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Solution
The fourth proportional to 355,492.74, 490,560.12 and 194,315.70 is: 268,144.81
Step by Step Solution
- Step 1: Write the proportion equation
355,492.74 : 490,560.12 = 194,315.70 : x - Step 2: Convert to fraction form
355,492.74/490,560.12 = 194,315.70/x - Step 3: Cross multiply
355,492.74x = 490,560.12 × 194,315.70 - Step 4: Simplify right side
355,492.74x = 95,323,533,109.88 - Step 5: Solve for x
x = 95,323,533,109.88/355,492.74 - Step 6: Final answer
x = 268,144.81
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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.