Finding the Fourth Proportional to 402,497.07, 555,458.46 and 221,205.71
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Solution
The fourth proportional to 402,497.07, 555,458.46 and 221,205.71 is: 305,270.75
Step by Step Solution
- Step 1: Write the proportion equation
402,497.07 : 555,458.46 = 221,205.71 : x - Step 2: Convert to fraction form
402,497.07/555,458.46 = 221,205.71/x - Step 3: Cross multiply
402,497.07x = 555,458.46 × 221,205.71 - Step 4: Simplify right side
402,497.07x = 122,870,583,019.81 - Step 5: Solve for x
x = 122,870,583,019.81/402,497.07 - Step 6: Final answer
x = 305,270.75
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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.