Finding the Fourth Proportional to 226,215.42, 312,215.67 and 130,777.62
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Solution
The fourth proportional to 226,215.42, 312,215.67 and 130,777.62 is: 180,495.31
Step by Step Solution
- Step 1: Write the proportion equation
226,215.42 : 312,215.67 = 130,777.62 : x - Step 2: Convert to fraction form
226,215.42/312,215.67 = 130,777.62/x - Step 3: Cross multiply
226,215.42x = 312,215.67 × 130,777.62 - Step 4: Simplify right side
226,215.42x = 40,830,822,249.31 - Step 5: Solve for x
x = 40,830,822,249.31/226,215.42 - Step 6: Final answer
x = 180,495.31
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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.