Finding the Fourth Proportional to 237,421.80, 327,645.99 and 129,990.06
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Solution
The fourth proportional to 237,421.80, 327,645.99 and 129,990.06 is: 179,388.42
Step by Step Solution
- Step 1: Write the proportion equation
237,421.80 : 327,645.99 = 129,990.06 : x - Step 2: Convert to fraction form
237,421.80/327,645.99 = 129,990.06/x - Step 3: Cross multiply
237,421.80x = 327,645.99 × 129,990.06 - Step 4: Simplify right side
237,421.80x = 42,590,721,898.86 - Step 5: Solve for x
x = 42,590,721,898.86/237,421.80 - Step 6: Final answer
x = 179,388.42
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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.