Finding the Fourth Proportional to 286,762.80, 430,231.68 and 146,619.84
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Solution
The fourth proportional to 286,762.80, 430,231.68 and 146,619.84 is: 219,974.49
Step by Step Solution
- Step 1: Write the proportion equation
286,762.80 : 430,231.68 = 146,619.84 : x - Step 2: Convert to fraction form
286,762.80/430,231.68 = 146,619.84/x - Step 3: Cross multiply
286,762.80x = 430,231.68 × 146,619.84 - Step 4: Simplify right side
286,762.80x = 63,080,500,084.53 - Step 5: Solve for x
x = 63,080,500,084.53/286,762.80 - Step 6: Final answer
x = 219,974.49
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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.