Finding the Fourth Proportional to 376,987.15, 520,236.43 and 207,217.63
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Solution
The fourth proportional to 376,987.15, 520,236.43 and 207,217.63 is: 285,957.12
Step by Step Solution
- Step 1: Write the proportion equation
376,987.15 : 520,236.43 = 207,217.63 : x - Step 2: Convert to fraction form
376,987.15/520,236.43 = 207,217.63/x - Step 3: Cross multiply
376,987.15x = 520,236.43 × 207,217.63 - Step 4: Simplify right side
376,987.15x = 107,802,160,064.26 - Step 5: Solve for x
x = 107,802,160,064.26/376,987.15 - Step 6: Final answer
x = 285,957.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.