Finding the Fourth Proportional to 308,089.80, 462,134.70 and 142,201.80
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Solution
The fourth proportional to 308,089.80, 462,134.70 and 142,201.80 is: 213,302.70
Step by Step Solution
- Step 1: Write the proportion equation
308,089.80 : 462,134.70 = 142,201.80 : x - Step 2: Convert to fraction form
308,089.80/462,134.70 = 142,201.80/x - Step 3: Cross multiply
308,089.80x = 462,134.70 × 142,201.80 - Step 4: Simplify right side
308,089.80x = 65,716,386,182.46 - Step 5: Solve for x
x = 65,716,386,182.46/308,089.80 - Step 6: Final answer
x = 213,302.70
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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.