Finding the Fourth Proportional to 287,643.08, 431,526.90 and 110,150.09
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Solution
The fourth proportional to 287,643.08, 431,526.90 and 110,150.09 is: 165,248.99
Step by Step Solution
- Step 1: Write the proportion equation
287,643.08 : 431,526.90 = 110,150.09 : x - Step 2: Convert to fraction form
287,643.08/431,526.90 = 110,150.09/x - Step 3: Cross multiply
287,643.08x = 431,526.90 × 110,150.09 - Step 4: Simplify right side
287,643.08x = 47,532,726,872.42 - Step 5: Solve for x
x = 47,532,726,872.42/287,643.08 - Step 6: Final answer
x = 165,248.99
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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.