Finding the Fourth Proportional to 149,863.21, 223,701.53 and 130,945.99
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Solution
The fourth proportional to 149,863.21, 223,701.53 and 130,945.99 is: 195,463.71
Step by Step Solution
- Step 1: Write the proportion equation
149,863.21 : 223,701.53 = 130,945.99 : x - Step 2: Convert to fraction form
149,863.21/223,701.53 = 130,945.99/x - Step 3: Cross multiply
149,863.21x = 223,701.53 × 130,945.99 - Step 4: Simplify right side
149,863.21x = 29,292,818,310.36 - Step 5: Solve for x
x = 29,292,818,310.36/149,863.21 - Step 6: Final answer
x = 195,463.71
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.