Finding the Fourth Proportional to 380,345.87, 524,912.51 and 210,579.99
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Solution
The fourth proportional to 380,345.87, 524,912.51 and 210,579.99 is: 290,619.89
Step by Step Solution
- Step 1: Write the proportion equation
380,345.87 : 524,912.51 = 210,579.99 : x - Step 2: Convert to fraction form
380,345.87/524,912.51 = 210,579.99/x - Step 3: Cross multiply
380,345.87x = 524,912.51 × 210,579.99 - Step 4: Simplify right side
380,345.87x = 110,536,072,811.87 - Step 5: Solve for x
x = 110,536,072,811.87/380,345.87 - Step 6: Final answer
x = 290,619.89
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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.