Finding the Fourth Proportional to 385,543.18, 531,986.11 and 242,201.71
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Solution
The fourth proportional to 385,543.18, 531,986.11 and 242,201.71 is: 334,198.48
Step by Step Solution
- Step 1: Write the proportion equation
385,543.18 : 531,986.11 = 242,201.71 : x - Step 2: Convert to fraction form
385,543.18/531,986.11 = 242,201.71/x - Step 3: Cross multiply
385,543.18x = 531,986.11 × 242,201.71 - Step 4: Simplify right side
385,543.18x = 128,847,945,538.25 - Step 5: Solve for x
x = 128,847,945,538.25/385,543.18 - Step 6: Final answer
x = 334,198.48
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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.