Finding the Fourth Proportional to 214,420.32, 321,224.50 and 143,127.99
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Solution
The fourth proportional to 214,420.32, 321,224.50 and 143,127.99 is: 214,420.99
Step by Step Solution
- Step 1: Write the proportion equation
214,420.32 : 321,224.50 = 143,127.99 : x - Step 2: Convert to fraction form
214,420.32/321,224.50 = 143,127.99/x - Step 3: Cross multiply
214,420.32x = 321,224.50 × 143,127.99 - Step 4: Simplify right side
214,420.32x = 45,976,217,023.76 - Step 5: Solve for x
x = 45,976,217,023.76/214,420.32 - Step 6: Final answer
x = 214,420.99
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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.