Finding the Fourth Proportional to 643,031.73, 964,206.18 and 216,425.18
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Solution
The fourth proportional to 643,031.73, 964,206.18 and 216,425.18 is: 324,522.86
Step by Step Solution
- Step 1: Write the proportion equation
643,031.73 : 964,206.18 = 216,425.18 : x - Step 2: Convert to fraction form
643,031.73/964,206.18 = 216,425.18/x - Step 3: Cross multiply
643,031.73x = 964,206.18 × 216,425.18 - Step 4: Simplify right side
643,031.73x = 208,678,498,474.13 - Step 5: Solve for x
x = 208,678,498,474.13/643,031.73 - Step 6: Final answer
x = 324,522.86
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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.