Finding the Fourth Proportional to 287,772.48, 431,698.14 and 98,181.99
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Solution
The fourth proportional to 287,772.48, 431,698.14 and 98,181.99 is: 147,286.43
Step by Step Solution
- Step 1: Write the proportion equation
287,772.48 : 431,698.14 = 98,181.99 : x - Step 2: Convert to fraction form
287,772.48/431,698.14 = 98,181.99/x - Step 3: Cross multiply
287,772.48x = 431,698.14 × 98,181.99 - Step 4: Simplify right side
287,772.48x = 42,384,982,464.50 - Step 5: Solve for x
x = 42,384,982,464.50/287,772.48 - Step 6: Final answer
x = 147,286.43
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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.