Finding the Fourth Proportional to 417,156.21, 575,679.56 and 226,170.09
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Solution
The fourth proportional to 417,156.21, 575,679.56 and 226,170.09 is: 312,116.88
Step by Step Solution
- Step 1: Write the proportion equation
417,156.21 : 575,679.56 = 226,170.09 : x - Step 2: Convert to fraction form
417,156.21/575,679.56 = 226,170.09/x - Step 3: Cross multiply
417,156.21x = 575,679.56 × 226,170.09 - Step 4: Simplify right side
417,156.21x = 130,201,496,765.51 - Step 5: Solve for x
x = 130,201,496,765.51/417,156.21 - Step 6: Final answer
x = 312,116.88
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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.