Finding the Fourth Proportional to 431,176.99, 646,275.03 and 262,325.14
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Solution
The fourth proportional to 431,176.99, 646,275.03 and 262,325.14 is: 393,189.32
Step by Step Solution
- Step 1: Write the proportion equation
431,176.99 : 646,275.03 = 262,325.14 : x - Step 2: Convert to fraction form
431,176.99/646,275.03 = 262,325.14/x - Step 3: Cross multiply
431,176.99x = 646,275.03 × 262,325.14 - Step 4: Simplify right side
431,176.99x = 169,534,187,723.25 - Step 5: Solve for x
x = 169,534,187,723.25/431,176.99 - Step 6: Final answer
x = 393,189.32
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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.