Finding the Fourth Proportional to 256,519.24, 353,995.68 and 143,341.99
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Solution
The fourth proportional to 256,519.24, 353,995.68 and 143,341.99 is: 197,811.46
Step by Step Solution
- Step 1: Write the proportion equation
256,519.24 : 353,995.68 = 143,341.99 : x - Step 2: Convert to fraction form
256,519.24/353,995.68 = 143,341.99/x - Step 3: Cross multiply
256,519.24x = 353,995.68 × 143,341.99 - Step 4: Simplify right side
256,519.24x = 50,742,445,222.60 - Step 5: Solve for x
x = 50,742,445,222.60/256,519.24 - Step 6: Final answer
x = 197,811.46
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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.