Finding the Fourth Proportional to 313,918.24, 470,866.86 and 136,425.26
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Solution
The fourth proportional to 313,918.24, 470,866.86 and 136,425.26 is: 204,633.33
Step by Step Solution
- Step 1: Write the proportion equation
313,918.24 : 470,866.86 = 136,425.26 : x - Step 2: Convert to fraction form
313,918.24/470,866.86 = 136,425.26/x - Step 3: Cross multiply
313,918.24x = 470,866.86 × 136,425.26 - Step 4: Simplify right side
313,918.24x = 64,238,133,800.88 - Step 5: Solve for x
x = 64,238,133,800.88/313,918.24 - Step 6: Final answer
x = 204,633.33
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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.