Finding the Fourth Proportional to 307,461.70, 424,278.87 and 178,390.18
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Solution
The fourth proportional to 307,461.70, 424,278.87 and 178,390.18 is: 246,167.84
Step by Step Solution
- Step 1: Write the proportion equation
307,461.70 : 424,278.87 = 178,390.18 : x - Step 2: Convert to fraction form
307,461.70/424,278.87 = 178,390.18/x - Step 3: Cross multiply
307,461.70x = 424,278.87 × 178,390.18 - Step 4: Simplify right side
307,461.70x = 75,687,181,868.10 - Step 5: Solve for x
x = 75,687,181,868.10/307,461.70 - Step 6: Final answer
x = 246,167.84
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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.