Finding the Fourth Proportional to 341,499.14, 470,830.74 and 280,018.84
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Solution
The fourth proportional to 341,499.14, 470,830.74 and 280,018.84 is: 386,066.79
Step by Step Solution
- Step 1: Write the proportion equation
341,499.14 : 470,830.74 = 280,018.84 : x - Step 2: Convert to fraction form
341,499.14/470,830.74 = 280,018.84/x - Step 3: Cross multiply
341,499.14x = 470,830.74 × 280,018.84 - Step 4: Simplify right side
341,499.14x = 131,841,477,651.14 - Step 5: Solve for x
x = 131,841,477,651.14/341,499.14 - Step 6: Final answer
x = 386,066.79
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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.