Finding the Fourth Proportional to 385,039.10, 577,347.23 and 118,725.68
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Solution
The fourth proportional to 385,039.10, 577,347.23 and 118,725.68 is: 178,023.32
Step by Step Solution
- Step 1: Write the proportion equation
385,039.10 : 577,347.23 = 118,725.68 : x - Step 2: Convert to fraction form
385,039.10/577,347.23 = 118,725.68/x - Step 3: Cross multiply
385,039.10x = 577,347.23 × 118,725.68 - Step 4: Simplify right side
385,039.10x = 68,545,939,887.94 - Step 5: Solve for x
x = 68,545,939,887.94/385,039.10 - Step 6: Final answer
x = 178,023.32
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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.