Finding the Fourth Proportional to 431,387.76, 595,315.68 and 240,396.96
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Solution
The fourth proportional to 431,387.76, 595,315.68 and 240,396.96 is: 331,748.12
Step by Step Solution
- Step 1: Write the proportion equation
431,387.76 : 595,315.68 = 240,396.96 : x - Step 2: Convert to fraction form
431,387.76/595,315.68 = 240,396.96/x - Step 3: Cross multiply
431,387.76x = 595,315.68 × 240,396.96 - Step 4: Simplify right side
431,387.76x = 143,112,079,712.33 - Step 5: Solve for x
x = 143,112,079,712.33/431,387.76 - Step 6: Final answer
x = 331,748.12
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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.