Finding the Fourth Proportional to 412,865.21, 569,724.73 and 229,113.65
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Solution
The fourth proportional to 412,865.21, 569,724.73 and 229,113.65 is: 316,160.60
Step by Step Solution
- Step 1: Write the proportion equation
412,865.21 : 569,724.73 = 229,113.65 : x - Step 2: Convert to fraction form
412,865.21/569,724.73 = 229,113.65/x - Step 3: Cross multiply
412,865.21x = 569,724.73 × 229,113.65 - Step 4: Simplify right side
412,865.21x = 130,531,713,237.09 - Step 5: Solve for x
x = 130,531,713,237.09/412,865.21 - Step 6: Final answer
x = 316,160.60
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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.