Finding the Fourth Proportional to 180,007.99, 248,406.21 and 99,433.78
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Solution
The fourth proportional to 180,007.99, 248,406.21 and 99,433.78 is: 137,215.95
Step by Step Solution
- Step 1: Write the proportion equation
180,007.99 : 248,406.21 = 99,433.78 : x - Step 2: Convert to fraction form
180,007.99/248,406.21 = 99,433.78/x - Step 3: Cross multiply
180,007.99x = 248,406.21 × 99,433.78 - Step 4: Simplify right side
180,007.99x = 24,699,967,814.76 - Step 5: Solve for x
x = 24,699,967,814.76/180,007.99 - Step 6: Final answer
x = 137,215.95
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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.