Finding the Fourth Proportional to 316,433.62, 436,679.40 and 173,202.94
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Solution
The fourth proportional to 316,433.62, 436,679.40 and 173,202.94 is: 239,020.61
Step by Step Solution
- Step 1: Write the proportion equation
316,433.62 : 436,679.40 = 173,202.94 : x - Step 2: Convert to fraction form
316,433.62/436,679.40 = 173,202.94/x - Step 3: Cross multiply
316,433.62x = 436,679.40 × 173,202.94 - Step 4: Simplify right side
316,433.62x = 75,634,155,917.44 - Step 5: Solve for x
x = 75,634,155,917.44/316,433.62 - Step 6: Final answer
x = 239,020.61
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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.