Finding the Fourth Proportional to 316,660.96, 436,982.34 and 173,417.32
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Solution
The fourth proportional to 316,660.96, 436,982.34 and 173,417.32 is: 239,310.54
Step by Step Solution
- Step 1: Write the proportion equation
316,660.96 : 436,982.34 = 173,417.32 : x - Step 2: Convert to fraction form
316,660.96/436,982.34 = 173,417.32/x - Step 3: Cross multiply
316,660.96x = 436,982.34 × 173,417.32 - Step 4: Simplify right side
316,660.96x = 75,780,306,290.13 - Step 5: Solve for x
x = 75,780,306,290.13/316,660.96 - Step 6: Final answer
x = 239,310.54
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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.