Finding the Fourth Proportional to 306,615.56, 423,141.62 and 170,655.24
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Solution
The fourth proportional to 306,615.56, 423,141.62 and 170,655.24 is: 235,510.99
Step by Step Solution
- Step 1: Write the proportion equation
306,615.56 : 423,141.62 = 170,655.24 : x - Step 2: Convert to fraction form
306,615.56/423,141.62 = 170,655.24/x - Step 3: Cross multiply
306,615.56x = 423,141.62 × 170,655.24 - Step 4: Simplify right side
306,615.56x = 72,211,333,861.81 - Step 5: Solve for x
x = 72,211,333,861.81/306,615.56 - Step 6: Final answer
x = 235,510.99
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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.