Finding the Fourth Proportional to 397,345.84, 548,339.84 and 216,059.74
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Solution
The fourth proportional to 397,345.84, 548,339.84 and 216,059.74 is: 298,163.84
Step by Step Solution
- Step 1: Write the proportion equation
397,345.84 : 548,339.84 = 216,059.74 : x - Step 2: Convert to fraction form
397,345.84/548,339.84 = 216,059.74/x - Step 3: Cross multiply
397,345.84x = 548,339.84 × 216,059.74 - Step 4: Simplify right side
397,345.84x = 118,474,163,262.04 - Step 5: Solve for x
x = 118,474,163,262.04/397,345.84 - Step 6: Final answer
x = 298,163.84
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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.