Finding the Fourth Proportional to 287,342.01, 431,098.34 and 147,199.05
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Solution
The fourth proportional to 287,342.01, 431,098.34 and 147,199.05 is: 220,842.28
Step by Step Solution
- Step 1: Write the proportion equation
287,342.01 : 431,098.34 = 147,199.05 : x - Step 2: Convert to fraction form
287,342.01/431,098.34 = 147,199.05/x - Step 3: Cross multiply
287,342.01x = 431,098.34 × 147,199.05 - Step 4: Simplify right side
287,342.01x = 63,457,265,368.58 - Step 5: Solve for x
x = 63,457,265,368.58/287,342.01 - Step 6: Final answer
x = 220,842.28
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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.