Finding the Fourth Proportional to 665,897.81, 998,855.91 and 216,621.02
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Solution
The fourth proportional to 665,897.81, 998,855.91 and 216,621.02 is: 324,934.53
Step by Step Solution
- Step 1: Write the proportion equation
665,897.81 : 998,855.91 = 216,621.02 : x - Step 2: Convert to fraction form
665,897.81/998,855.91 = 216,621.02/x - Step 3: Cross multiply
665,897.81x = 998,855.91 × 216,621.02 - Step 4: Simplify right side
665,897.81x = 216,373,188,554.37 - Step 5: Solve for x
x = 216,373,188,554.37/665,897.81 - Step 6: Final answer
x = 324,934.53
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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.