Finding the Fourth Proportional to 331,507.14, 497,334.99 and 121,139.70
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Solution
The fourth proportional to 331,507.14, 497,334.99 and 121,139.70 is: 181,736.69
Step by Step Solution
- Step 1: Write the proportion equation
331,507.14 : 497,334.99 = 121,139.70 : x - Step 2: Convert to fraction form
331,507.14/497,334.99 = 121,139.70/x - Step 3: Cross multiply
331,507.14x = 497,334.99 × 121,139.70 - Step 4: Simplify right side
331,507.14x = 60,247,011,488.10 - Step 5: Solve for x
x = 60,247,011,488.10/331,507.14 - Step 6: Final answer
x = 181,736.69
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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.