Finding the Fourth Proportional to 245,655.27, 338,880.07 and 143,614.20
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Solution
The fourth proportional to 245,655.27, 338,880.07 and 143,614.20 is: 198,114.99
Step by Step Solution
- Step 1: Write the proportion equation
245,655.27 : 338,880.07 = 143,614.20 : x - Step 2: Convert to fraction form
245,655.27/338,880.07 = 143,614.20/x - Step 3: Cross multiply
245,655.27x = 338,880.07 × 143,614.20 - Step 4: Simplify right side
245,655.27x = 48,667,990,148.99 - Step 5: Solve for x
x = 48,667,990,148.99/245,655.27 - Step 6: Final answer
x = 198,114.99
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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.