Finding the Fourth Proportional to 188,389.53, 282,334.14 and 138,234.87
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Solution
The fourth proportional to 188,389.53, 282,334.14 and 138,234.87 is: 207,168.75
Step by Step Solution
- Step 1: Write the proportion equation
188,389.53 : 282,334.14 = 138,234.87 : x - Step 2: Convert to fraction form
188,389.53/282,334.14 = 138,234.87/x - Step 3: Cross multiply
188,389.53x = 282,334.14 × 138,234.87 - Step 4: Simplify right side
188,389.53x = 39,028,423,139.46 - Step 5: Solve for x
x = 39,028,423,139.46/188,389.53 - Step 6: Final answer
x = 207,168.75
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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.