Finding the Fourth Proportional to 286,181.87, 429,288.61 and 86,497.23
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Solution
The fourth proportional to 286,181.87, 429,288.61 and 86,497.23 is: 129,750.62
Step by Step Solution
- Step 1: Write the proportion equation
286,181.87 : 429,288.61 = 86,497.23 : x - Step 2: Convert to fraction form
286,181.87/429,288.61 = 86,497.23/x - Step 3: Cross multiply
286,181.87x = 429,288.61 × 86,497.23 - Step 4: Simplify right side
286,181.87x = 37,132,275,419.31 - Step 5: Solve for x
x = 37,132,275,419.31/286,181.87 - Step 6: Final answer
x = 129,750.62
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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.