Finding the Fourth Proportional to 212,439.24, 318,855.69 and 107,332.02
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Solution
The fourth proportional to 212,439.24, 318,855.69 and 107,332.02 is: 161,097.48
Step by Step Solution
- Step 1: Write the proportion equation
212,439.24 : 318,855.69 = 107,332.02 : x - Step 2: Convert to fraction form
212,439.24/318,855.69 = 107,332.02/x - Step 3: Cross multiply
212,439.24x = 318,855.69 × 107,332.02 - Step 4: Simplify right side
212,439.24x = 34,223,425,296.19 - Step 5: Solve for x
x = 34,223,425,296.19/212,439.24 - Step 6: Final answer
x = 161,097.48
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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.