Finding the Fourth Proportional to 317,474.72, 438,113.84 and 174,237.12
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Solution
The fourth proportional to 317,474.72, 438,113.84 and 174,237.12 is: 240,446.53
Step by Step Solution
- Step 1: Write the proportion equation
317,474.72 : 438,113.84 = 174,237.12 : x - Step 2: Convert to fraction form
317,474.72/438,113.84 = 174,237.12/x - Step 3: Cross multiply
317,474.72x = 438,113.84 × 174,237.12 - Step 4: Simplify right side
317,474.72x = 76,335,693,713.74 - Step 5: Solve for x
x = 76,335,693,713.74/317,474.72 - Step 6: Final answer
x = 240,446.53
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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.