Finding the Fourth Proportional to 286,864.20, 430,382.70 and 153,808.20
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Solution
The fourth proportional to 286,864.20, 430,382.70 and 153,808.20 is: 230,758.63
Step by Step Solution
- Step 1: Write the proportion equation
286,864.20 : 430,382.70 = 153,808.20 : x - Step 2: Convert to fraction form
286,864.20/430,382.70 = 153,808.20/x - Step 3: Cross multiply
286,864.20x = 430,382.70 × 153,808.20 - Step 4: Simplify right side
286,864.20x = 66,196,388,398.14 - Step 5: Solve for x
x = 66,196,388,398.14/286,864.20 - Step 6: Final answer
x = 230,758.63
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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.