Finding the Fourth Proportional to 463,139.68, 694,709.50 and 130,715.68
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Solution
The fourth proportional to 463,139.68, 694,709.50 and 130,715.68 is: 196,073.51
Step by Step Solution
- Step 1: Write the proportion equation
463,139.68 : 694,709.50 = 130,715.68 : x - Step 2: Convert to fraction form
463,139.68/694,709.50 = 130,715.68/x - Step 3: Cross multiply
463,139.68x = 694,709.50 × 130,715.68 - Step 4: Simplify right side
463,139.68x = 90,809,424,694.96 - Step 5: Solve for x
x = 90,809,424,694.96/463,139.68 - Step 6: Final answer
x = 196,073.51
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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.