Finding the Fourth Proportional to 387,475.44, 581,212.34 and 106,991.88
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Solution
The fourth proportional to 387,475.44, 581,212.34 and 106,991.88 is: 160,487.59
Step by Step Solution
- Step 1: Write the proportion equation
387,475.44 : 581,212.34 = 106,991.88 : x - Step 2: Convert to fraction form
387,475.44/581,212.34 = 106,991.88/x - Step 3: Cross multiply
387,475.44x = 581,212.34 × 106,991.88 - Step 4: Simplify right side
387,475.44x = 62,185,000,935.80 - Step 5: Solve for x
x = 62,185,000,935.80/387,475.44 - Step 6: Final answer
x = 160,487.59
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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.