Finding the Fourth Proportional to 399,157.44, 598,762.08 and 132,907.20
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Solution
The fourth proportional to 399,157.44, 598,762.08 and 132,907.20 is: 199,369.43
Step by Step Solution
- Step 1: Write the proportion equation
399,157.44 : 598,762.08 = 132,907.20 : x - Step 2: Convert to fraction form
399,157.44/598,762.08 = 132,907.20/x - Step 3: Cross multiply
399,157.44x = 598,762.08 × 132,907.20 - Step 4: Simplify right side
399,157.44x = 79,579,791,518.98 - Step 5: Solve for x
x = 79,579,791,518.98/399,157.44 - Step 6: Final answer
x = 199,369.43
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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.