Finding the Fourth Proportional to 153,239.44, 229,859.20 and 42,431.44
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Solution
The fourth proportional to 153,239.44, 229,859.20 and 42,431.44 is: 63,647.17
Step by Step Solution
- Step 1: Write the proportion equation
153,239.44 : 229,859.20 = 42,431.44 : x - Step 2: Convert to fraction form
153,239.44/229,859.20 = 42,431.44/x - Step 3: Cross multiply
153,239.44x = 229,859.20 × 42,431.44 - Step 4: Simplify right side
153,239.44x = 9,753,256,853.25 - Step 5: Solve for x
x = 9,753,256,853.25/153,239.44 - Step 6: Final answer
x = 63,647.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.