Finding the Fourth Proportional to 317,422.02, 438,042.12 and 174,191.06
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Solution
The fourth proportional to 317,422.02, 438,042.12 and 174,191.06 is: 240,383.52
Step by Step Solution
- Step 1: Write the proportion equation
317,422.02 : 438,042.12 = 174,191.06 : x - Step 2: Convert to fraction form
317,422.02/438,042.12 = 174,191.06/x - Step 3: Cross multiply
317,422.02x = 438,042.12 × 174,191.06 - Step 4: Simplify right side
317,422.02x = 76,303,021,207.45 - Step 5: Solve for x
x = 76,303,021,207.45/317,422.02 - Step 6: Final answer
x = 240,383.52
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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.