Finding the Fourth Proportional to 450,832.68, 622,143.18 and 257,235.30
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Solution
The fourth proportional to 450,832.68, 622,143.18 and 257,235.30 is: 354,981.34
Step by Step Solution
- Step 1: Write the proportion equation
450,832.68 : 622,143.18 = 257,235.30 : x - Step 2: Convert to fraction form
450,832.68/622,143.18 = 257,235.30/x - Step 3: Cross multiply
450,832.68x = 622,143.18 × 257,235.30 - Step 4: Simplify right side
450,832.68x = 160,037,187,550.25 - Step 5: Solve for x
x = 160,037,187,550.25/450,832.68 - Step 6: Final answer
x = 354,981.34
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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.