Finding the Fourth Proportional to 478,130.42, 659,834.50 and 263,278.18
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Solution
The fourth proportional to 478,130.42, 659,834.50 and 263,278.18 is: 363,331.88
Step by Step Solution
- Step 1: Write the proportion equation
478,130.42 : 659,834.50 = 263,278.18 : x - Step 2: Convert to fraction form
478,130.42/659,834.50 = 263,278.18/x - Step 3: Cross multiply
478,130.42x = 659,834.50 × 263,278.18 - Step 4: Simplify right side
478,130.42x = 173,720,023,953.43 - Step 5: Solve for x
x = 173,720,023,953.43/478,130.42 - Step 6: Final answer
x = 363,331.88
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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.