Finding the Fourth Proportional to 215,243.68, 322,658.16 and 67,465.12
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Solution
The fourth proportional to 215,243.68, 322,658.16 and 67,465.12 is: 101,132.69
Step by Step Solution
- Step 1: Write the proportion equation
215,243.68 : 322,658.16 = 67,465.12 : x - Step 2: Convert to fraction form
215,243.68/322,658.16 = 67,465.12/x - Step 3: Cross multiply
215,243.68x = 322,658.16 × 67,465.12 - Step 4: Simplify right side
215,243.68x = 21,768,171,483.38 - Step 5: Solve for x
x = 21,768,171,483.38/215,243.68 - Step 6: Final answer
x = 101,132.69
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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.