Finding the Fourth Proportional to 385,823.62, 532,421.67 and 216,049.06
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Solution
The fourth proportional to 385,823.62, 532,421.67 and 216,049.06 is: 298,139.34
Step by Step Solution
- Step 1: Write the proportion equation
385,823.62 : 532,421.67 = 216,049.06 : x - Step 2: Convert to fraction form
385,823.62/532,421.67 = 216,049.06/x - Step 3: Cross multiply
385,823.62x = 532,421.67 × 216,049.06 - Step 4: Simplify right side
385,823.62x = 115,029,201,327.13 - Step 5: Solve for x
x = 115,029,201,327.13/385,823.62 - Step 6: Final answer
x = 298,139.34
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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.