Finding the Fourth Proportional to 385,156.36, 575,175.35 and 380,986.12
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Solution
The fourth proportional to 385,156.36, 575,175.35 and 380,986.12 is: 568,947.70
Step by Step Solution
- Step 1: Write the proportion equation
385,156.36 : 575,175.35 = 380,986.12 : x - Step 2: Convert to fraction form
385,156.36/575,175.35 = 380,986.12/x - Step 3: Cross multiply
385,156.36x = 575,175.35 × 380,986.12 - Step 4: Simplify right side
385,156.36x = 219,133,824,916.14 - Step 5: Solve for x
x = 219,133,824,916.14/385,156.36 - Step 6: Final answer
x = 568,947.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.