Finding the Fourth Proportional to 387,123.96, 580,420.64 and 197,216.76
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Solution
The fourth proportional to 387,123.96, 580,420.64 and 197,216.76 is: 295,689.99
Step by Step Solution
- Step 1: Write the proportion equation
387,123.96 : 580,420.64 = 197,216.76 : x - Step 2: Convert to fraction form
387,123.96/580,420.64 = 197,216.76/x - Step 3: Cross multiply
387,123.96x = 580,420.64 × 197,216.76 - Step 4: Simplify right side
387,123.96x = 114,468,678,057.93 - Step 5: Solve for x
x = 114,468,678,057.93/387,123.96 - Step 6: Final answer
x = 295,689.99
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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.