Finding the Fourth Proportional to 318,078.74, 438,958.16 and 182,156.70
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Solution
The fourth proportional to 318,078.74, 438,958.16 and 182,156.70 is: 251,381.69
Step by Step Solution
- Step 1: Write the proportion equation
318,078.74 : 438,958.16 = 182,156.70 : x - Step 2: Convert to fraction form
318,078.74/438,958.16 = 182,156.70/x - Step 3: Cross multiply
318,078.74x = 438,958.16 × 182,156.70 - Step 4: Simplify right side
318,078.74x = 79,959,169,863.67 - Step 5: Solve for x
x = 79,959,169,863.67/318,078.74 - Step 6: Final answer
x = 251,381.69
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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.