Finding the Fourth Proportional to 412,867.21, 569,727.49 and 229,115.65
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Solution
The fourth proportional to 412,867.21, 569,727.49 and 229,115.65 is: 316,163.36
Step by Step Solution
- Step 1: Write the proportion equation
412,867.21 : 569,727.49 = 229,115.65 : x - Step 2: Convert to fraction form
412,867.21/569,727.49 = 229,115.65/x - Step 3: Cross multiply
412,867.21x = 569,727.49 × 229,115.65 - Step 4: Simplify right side
412,867.21x = 130,533,484,194.22 - Step 5: Solve for x
x = 130,533,484,194.22/412,867.21 - Step 6: Final answer
x = 316,163.36
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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.